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CHAPTER IV: DATA COLLECTION AND ANALYSIS
“Ishikawa’s biggest contribution is in simplifying statistical techniques for quality control in
industry. At the simplest technical level, his work has emphasised good data collection and presentation.” - Samuel K.M.Ho (100, p.35)
_______________________________________________
The Research Design and Methodology for data collection was described in
previous chapter. This chapter now presents the data collection and data analysis.
The complete chapter is divided into three sections. The first part of section 4.2
describes the organizational and quality profile of respondents. The separate analysis is
presented for the responses of random sample (SMEs) and purposive sample (QA
winning industries) with an attempt to highlight the differences of quality practices and
organizational culture.
The second part presents the assessment for scale stability prior to main
empirical analysis. This part provides factor analysis, reliability & validity analysis, chi-
square test of independence, and cogeneric model (composite score of all constructs)
for both SMEs and Large enterprises. To obtain more indicative inferences, the group of
SME is divided further into ISO practicing SMEs and TQM practicing. Thus, the
comparative analysis is obtained for three groups: Group I (only ISO certified firms, not
implemented any formal TQM programme); Group II (ISO certified firms, have
implemented formal TQM programme and continuing there efforts to bag the national
Quality Awards, and Group III (industries won the national Quality Awards)
The third and final part, as presented in Section 4.3, provides the analysis for
several hypotheses, based on research objectives of this study. The first research
question (R1) addressing the relationship between quality practices and performance
measures, is empirically investigated by testing the three hypotheses (H1-1) (H1-2) and
(H1-3). The second research question (R2) focusing the length of time with quality
adoption in industries and its impact on manufacturing practices and performance, has
been investigated by two hypotheses (H2-1) and (H2-2) respectively. The third research
question (R3) of this study, was intended to investigate the impact of different
approaches of quality adoption (Such as TQM before ISO 9000 and vice versa) in
SMEs, and investigations were carried by testing one hypothesis (H3-1). The fourth
research question (R4) was related to provide the empirical investigation between ISO
9000 and TQM, which quality practice is highly significant to winning the Quality Award,
and hypothesis (H4-1) provides the outcomes. The fifth research question (R5) of this
research, was intended to investigate the effect of other factors (such as age of firm,
size of firm, annual sales turnover, and type of manufacturing) on performance. Four
hypotheses (H5-1 to H5-4) were tested to obtain the empirical relationship. The last
research question (R6) was associated with the investigations for performance
indicators and there relationship with quality practices, was analyzed through two
hypotheses (H6-1) and (H6-2). The analysis for two open ended questions is also
presented in this section.
4.1 Data Collection:
This study shows the satisfactory response rate of 37.28 % (261 from 700)
from random sample and 26.66 % (40 from 150) from purposive sample. Regarding the
analysis according to the method of data collection, 80 % (209 from 261) respondents
from random sample responded to postal survey, while remaining preferred an e-mail to
respond. From the purposive sample of QA winning firms, the 37% (15 out of 40)
respondents preferred an e-mail; while 63 % (25 from 40) responded via postal survey.
Table 4.1 provides the summary of data collection.
Psycholgical studies have mentioned about the cognitive bias as the prime
source of errors in judgment, social attribution, and memory, which are common
outcome of human thought, and often drastically skew the reliability of anecdotal and
legal evidence [170]
After examining the collected data, it was observed few responses were prone to
cognitive bias (defined as the human tendency to make systematic errors in certain
circumstances based on cognitive factors rather than evidence) and heuristics in nature
(based on information-processing shortcuts) [70]. After excluding all inappropriate
responses, this study finally considered 189 responses from SMEs and 40 responses
from QA winning firms, as valid and appropriate one.
After retaining those 229 appropriate responses, this study provides a common
response rate of 27%, for both random and purposive sample. It was observed further
that all 40 respondents from purposive sample (QA winning firms) have responded
appropriately to the questionnaire, which reflects their sincere approach while
responding to this study.
Table 4.1: Analysis for responses (Random and Purposive sample)
Postal Survey Internet Survey (via E- Mail)
Total
Targeted Population for SMEs : 700 Manufacturing units Targeted Population for QA winning firms : 150 Manufacturing units
Response Received : Total Response 261 92 353 Invalid Response 85
(32.60%) 39 (42.39 %)
124
Total Valid Response
176 (76.85%)
53 (57.60%)
229
Response from Random sample of ISO certified SMEs
151 (79.90%)
38 (20.10%)
189
Response from Purposive sample of Quality Award winning Industries
25/40 (62.50%)
15/40 (37.5%)
40
Valid Response rate from overall population: From ISO certified SMEs: 189 out of 700 (27%)
From QA wining firms: 40 out of 150 (27%)
This study also represents the responses from all sectors of manufacturing. Table 4.2
provides the sector wise response from the central India-wide population, to indicate the
highest respondents (22.90%) were from mechanical based industries, followed by
Automobile industries (17.00%) and other sectors of manufacturing.
To identify the demographic response rate, another analysis is carried further
and details of the same are presented in Table 4.3. The analysis has represented that
around 67% (152 from 229) respondents of this study were from Maharashtra state,
followed by 9.60 % (22 from 229) from Madhya Pradesh, and other regions of central
India.
Table 4.2: Responses from different Manufacturing Sectors of central India –wide Population
SN Area of Manufacturing SMEs Large
Enter.
Respondents Percentage
1 Mechanical and Machine tools
Industries
47 06 53 22.90
2 Automobile and Auto Component
Industries
27 12 39 17.00
3 Steel and other Metal Industries 24 09 33 14.50
4 Electrical and Electronics Industries 27 04 31 13.60
4 Chemical Industries 20 06 26 11.40
5 Textile Industries 16 03 19 08.30
6 Plastic Industries 16 -- 16 07.00
7 Other Industries (Ancillary Units) 12 -- 12 05.30
TOTAL 189 40 229 100.00
Table 4.3: Demographic response received for the study (only valid responses)
SN State SMEs Large
Enterprises
Percent
1 Maharashtra 123 29 66.37%
2 Goa -- 01 00.44%
3 Chattisgarh 10 01 04.80%
4 Madhya Pradesh 22 -- 09.60%
5 Gujarat 16 02 07.86%
6 Andhra Pradesh -- 01 00.44%
7 Tamilnadu 07 02 03.93%
8 Karnataka 02 01 01.31%
9 Delhi 09 03 05.24%
TOTAL 189 40
4.2 Organizational Profile of Respondents
The questionnaire of this study contained the first part as respondent’s profile,
and the second part as research instrument.
The analysis of respondents profile has indicated that all respondents from
random sample were from SMEs while all forty respondents of QA winning firms
were belonging to large enterprise. This categorization was made on the basis of
eligibility criteria defined by BIS to participate in assessment process of Business
Excellence Model, RGNQA [193] and also prescribed in other national quality award
model GPNQA [76]. They defined SMEs are those units which are having less than
250 employees in their firm, and annual turnover not exceeding 300 Crore INR.
Regarding quality practices in SMEs, it was observed further that among 189
respondents only 60 respondents have mentioned about using the formal TQM
programme in their firms, while remaining 129 respondents were only ISO certified
and haven’t implemented any formal TQM programme in their organization. This
analysis has provided that there are two groups of quality practioner in SMEs, The
first group implemented formal TQM programme in their firm, and the second one
haven’t implemented any formal TQM programme in their firm. It was further
indicative that later group in the absence of formal TQM programme is still
continuing the principles of ISO 9000 certification for continual improvement in their
organization.
The TQM practicing SMEs also mentioned about following the Quality Award
Model guidelines of RGNQA and other popular national quality award models such
as GPNQA, IMC RBNQA, and CII EXIM Bank Award. Table 4.4 provides the details
of all 189 SMEs, representing age of firm, size of firm, annual sales turnover and
year with ISO certification. It is indicative from the table that, all manufacturing
organizations were having less than 250 employees and annual turnover around 100
Crore INR.
The second part of questionnaire as mentioned earlier, contained the
research instrument in two halves, the first part of 59 questions to collect the
information for quality practices in respondents firm and the second part containing
the attributes of 24 performance measures. The respondents’ weight age (means) to
these performance measures is presented in Appendix 4.1, to pertain the
respondents view regarding impact of certification on performance prior to obtaining
the empirical investigations. The table shows that the respondents of ISO certified
SMEs, view certification to mainly to improve the order processing (Mean =3.47) and
to reduce the cost for inspection (Mean =3.44). However, they all shown
disagreement with the statement that ISO certification helps in improving the market
share by allotting lowest weight (Mean = 3.14) and to another statement of ISO
certification increases the exports (Mean= 3.22) and provides product innovation
(Mean =3.20). The respondents view regarding impact of certification for
improvement in market shares and product innovation is acceptable to certain
extent, but their negative response towards reduction in exports have raised a
substantial question about the utility of ISO certification, since globally this
certification is recognised as “passport to exports” [236]
Table 4.4: Organization Profile of SMEs
N Minimum Maximum Mean Std. Deviation Variance
Age of Firm 189 5.00 15.00 6.96 2.60 6.765
No. Of Employees 189 100.00 225 137.56 35.73 1276.758
Ann. Sales Turn. In Crore (INR)
189 50 225 99.07 44.60 1989.165
Year with ISO 189 3.00 15.00 7.90 2.24 5.0176
Valid N (list wise) 189
Based on quality practices in SMEs, the SMEs were divided into two groups. Group I
contained those firms practicing only ISO 9000 principles for performance improvement
and the Group II , practicing TQM along with certification for performance
improvement. For the analysis purpose, the Group I is termed as ‘ISO certified SMEs’,
and Group II have been referred as ‘TQM practicing SMEs’. Table 4.5 provides the
organizational profile of two groups of SMEs.
The Descriptive of organizational profile provides the relative difference between
these two groups such as ISO certified SMEs were having only 132 employees in their
firms, and the modest annual sales turnover of 75 Crores INR. On the other hand,
TQM practicing SMEs were having the employee size of 148 in their firm and an annual
sales turnover of 151 Crores INR. The average year with ISO certification in ISO
certified SMEs were 5.5 years, while for TQM practicing firm it was almost double (10.2
years). TQM practicing SMEs also indicated 8.8 years of TQM practices in their firms.
Table 4.5: Organizational Profile of two groups of SMEs
ISO certified SMEs N Minimum Maximum Mean Std. Deviation
Experience (Yrs) 129 5.00 20.00 10.13 4.61
Age of Firm (Yrs) 129 5.00 10.00 6.39 2.25
No. of Employee 129 100 200 132 33.71
Ann Sales Turnover (In Crore INR)
129 50 150 74.81 21.03
Year with ISO 129 3.00 8.00 5.56 2.31
Valid N (list wise) 129 TQM SMEs N Minimum Maximum Mean Std. Deviation
Experience (Yrs) 60 5.00 20.00 12.15 6.00
Age of firm (Yrs) 60 7.00 15.00 8.20 2.88
No. of employee 60 100 225 147.50 38.15
Ann Sales Turnover (In Crore INR)
60 100 225 151.25 36.36
Year with ISO 60 4.00 12.00 10.25 2.17
Year with TQM 60 3.00 12.00 8.82 2.19
Valid N (list wise) 60
The purposive sample of 40 respondents, were from those industries that have
bagged (won) national Quality Award in recent past. While sending the questionnaire to
these respondents, researchers have chosen the sample of 150 Quality Award winning
SMEs from the list of RGNQA, and other three national quality awards, with an objective
to obtain the comparative analysis between ISO certified SMEs and QA winning SMEs.
This list contained the winners from SME category from 2000 to 2009, and after analysis
it was observed that all respondents replied to this study; have bagged these awards in
between 2000-2006. Since, they responded to this questionnaire in 2010, all of them are
now turned into large enterprise (more than 250 employee and annual sales turnover
exceeds 300 Crore INR) .The other details of QA winning firms is presented in Table
4.6, to represent that QA winning firms are having more experienced employees, more
years of establishment, larger employee size and an impressive annual turnover in
comparison with SMEs. Regarding ISO certification, all respondents from this group
have mentioned the year of certification in between 2004 to 2008, which indicated few
firms have gone for certification after receiving the quality award.
Appendix 4.2 also presents the respondents view of impact of QA practices on
24 performance indicators, prior to empirical investigations. The analysis indicates that
QA practices positively influences to achieve customer satisfaction, increase the
exports, and ROI of the firm (all Means =4.60), while little influence was noted for
reduction in rework (Mean =4.25), reduction in personnel expenses, and order
processing and customer services (Mean =4.32)
Table 4.6: Organizational Profile of QA Winning firms
QA Winning Large Enter.
N Minimum
Maximum Mean Std. Deviation
Experience (Yrs) 40 5.00 20 15.5 5.80
Age of Firm (Yrs) 40 10.00 20.00 14.42 2.26
No. Of Employee 40 300.00 600 432 118.37
Annual Sales Turnover (In Crore INR)
40 300.00 900.00 482 129.46
Year with ISO 40 4.00 8.00 6.00 3.08
Year with TQM 40 5.00 15.00 10.00 3.06
Year with QA 40 4.00 10.00 7.35 2.14
Valid N (list wise) 40
4.2.1 Quality Profile of Respondents
ISO certified SMEs (N=129) has represented that 47 firms (36.44%) received
this certification before the year 2005, and 82 firms (63.56%) were certified after 2005.
These figures indicate the trend in growth rate of ISO certification in Indian
SMEs. Appendix 4.3 represents growth rate of ISO certification in Indian SMEs.
About the reasons for attaining the ISO certification, 52 respondents (40 %)
thought the certification for improving the competitiveness and 38 respondents (30 %)
looked certification as a result of pressure from customers. The remaining respondents
thought the certification for obtaining the company prestige and to develop the quality
culture in their organization. Regarding respondent’s position in organization, one third
employee were marketing and HR managers; half were production and works mangers,
and remaining were proprietors of those firms.
The second group of TQM practicing SMEs (N=60) received the ISO 9000
certification in between 1998 to 2006. The respondent’s analysis also indicated an
important point that 27 respondents have implemented TQM before ISO 9000
certification, while 18 of them have implemented TQM after the certification. The
remaining 15 respondents have implemented both TQM and ISO 9000 certification
simultaneously Regarding reason to attain the certification 60% respondents (36 from
60) thought certification for improving the competitiveness, while remaining 40%(24
from 60) favoured the reason for certification to meet the pressure from customers. The
respondent profile also represented their position in firm. One third respondents were
quality managers, while half of them at senior positions such as General Managers/
Senior Managers and CEOs. The remaining respondents were proprietors of those
firms.
The respondents from third group, represented more years with TQM practices
(15 years) and less year with ISO certification (maximum eight years). In responding to
different award received in past, respondents also added the information of other
international quality awards (also known as Business Excellence Models) like EFQM
and JQM, Frost and Sullivan award, Deming Prize etc.
The other awards like Product design awards, Kaizen awards, Best
entrepreneur of the year award etc were also mentioned by them. Table 4.7 provides
the summary of different awards received by these firms. Regarding reason for ISO
certification, 70 % respondents (28 from 40) stated the reason for certification due to
external pressure from customers and stack holders; while remaining mentioned the
reason for certification is to maintain the company prestige.
In contrast to SMEs, three forth respondents from quality awards winning
firms, were CEO and General Managers while remaining were
Production/operation/quality Managers.
Table 4.7: Summary of Awards
Major National Quality Award
International Awards Other Awards Number
of Firms
RGNQA
(N=10)
EFQM Global Brand Award 02 JQM KAIZEN Award 01 Frost & Sullivan Award Engineering Award 03 Dun & Broad Street Award Product design Award 01 Innovation Award (UK) Udyog Ratna 02 Deming Prize Best Entrepreneur of
the Year Award 01
IMC RBNQA
(N=13)
JQM Scope Award for Excellence
01
Dow Jones Award Product Design Award 03 World’s Most Admired Fortune Company Award
TPM Excellence Award 04
National Award for Technology
02
Export Award 01
Deming Prize KAIZEN Award 02
GPNQA
(N=10)
EFQM Best Supplier Award 01 ASME Design Award(USA) Product Design Award 03 Frost & Sullivan Award Best Entrepreneur of
the Year Award 03
Gold Award for Safety 02
Engineering Award 01
CII EXIM BANK AWARD
(N=7)
World’s Most Admired Fortune Company Award
Export Award 02
Innovation Award (UK) Best Supplier Award 02
Scope Award for Excellence
01
National Award for Technology
02
TOTAL 40
Table 4.8 provides the classification of responses form SMEs and large
enterprises, practicing ISO 9000; TQM; and QA Models. Table also provides the
response rate of these firms from different manufacturing sectors.
Table 4.8: Sector wise responses for SMEs and LE practicing ISO 9000, TQM and QA
Models
SN Area of Manufacturing ISO SMEs
TQM SMEs
QA LE
Respondents Percentage
1 Mechanical and Machine tools Industries 34 13 06 53 22.90
2 Automobile and Auto Component
Industries 17 10 12 39 17.00
3 Steel and other Metal Industries 11 13 09 33 14.50
4 Electrical and Electronics Industries 21 06 04 31 13.60
4 Chemical Industries 12 08 06 26 11.40
5 Textile Industries 13 03 03 19 08.30
6 Plastic Industries 15 01 -- 16 07.00
7 Other Industries (Ancillary Units) 06 06 -- 12 05.30
TOTAL 129 60 40 229 100.00
4.3 Validity and Reliability assessment of scale
This section describes the preliminary analysis of 229 valid responses from
SMEs and LE. Prior to testing the several hypotheses of this study, the scale stability
was obtained by performing the reliability and validity assessment.
Reliability refers to the property of a measurement instrument that causes it to
give similar results for similar inputs. Cronbach's alpha [40] is a measure of reliability.
More specifically, alpha is a lower bound for the true reliability of the survey.
Mathematically, reliability is defined as the proportion of the variability in the responses
to the survey that is the result of differences in the respondents. The computation of
Cronbach's alpha [74] is based on the number of items on the survey (k) and the ratio of
the average inter-item covariance to the average item variance, and presented as,
α=k (cov/var) / 1+(k−1) (cov/var) (4.1)
Under the assumption that the item variances are all equal, this ratio simplifies to the
average inter-item correlation, and the result is known as the Standardized item alpha
(or Spearman-Brown stepped-up reliability coefficient) [176]
α = kr/ 1+(k−1) r (4.2)
Validity refers to the degree to which evidence and theory supports the
interpretations of test scores entailed by proposed uses of tests. Although classical
models divided the concept into content validity, criterion validity, and construct validity
the modern view is that validity is a single unitary construct (unidimensionality of scale)
[11]
Content validity refers to the extent to which a measure represents all facets of a
given construct. For example, a depression scale may lack content validity if it only
assesses the affective dimension of depression but fails to take into account the
behavioural dimension. Content validity is also related to face validity, pertains to
whether the test "looks valid" to the examinees who take it. Content validity requires
more rigorous statistical tests than face validity, which only requires an intuitive
judgement [70]
Criterion validity is a measure of how well one variable or set of variables
predicts an outcome based on information from other variables, and will be achieved if
a set of measures from a sample relate to a behavioural criterion on which
psychologists agree. A typical way to achieve this is in relation to the extent to which a
score on a personality test can predict future performance or behaviour [174]
Construct validity refers to whether a scale measures or correlates with the
theorized construct that it purports to measure. The scale seeks to operationalized the
concept, typically measuring several observable phenomena that supposedly reflect
the underlying psychological concept. Construct validity is a means of assessing how
well this has been accomplished. In lay terms, construct validity answers the question:
"Are we actually measuring (are these means a valid form for measuring) what (the
construct) we think we are measuring?” Finally, unidimensionality is a necessary
condition for reliability analysis and construct validation. In the absence of
unidimensionality, a single number cannot be used to represent the value of a scale.
Confirmatory factor analysis is suggested along with Cronbach’s alpha and Goodness-
of-Fit Index to obtain the unidimensionality of scale and to develop cogeneric model
[88,145]
Ahire [11] also proposed convergent and discriminate validity analysis for survey
based questionnaire methodology to administer the scale, aligned with developing the
cogeneric model. Hair et al.[88] , suggests that confirmatory factor analysis along with
KMO and Bartlett’s test of sphericity [128] will provide the convergent validity of scale
(an extent to which construct will yield same result) and cross- tabs with Chi-square test
of independence to examine the discriminant validity(constituent items of scale exhibits
only one construct) [26]
This study has adopted the modern approach of unidimensionality analysis, to
develop the cogeneric model for composite single score of all constructs as proposed
by Ahire et al. [11] for development and validation of QM implementation constructs.
Both convergent and discriminant validity assessments were performed, to yield same
result with single construct of all constituent items of scale.
All five performance measures were treated as “single construct” of quality
performance along with eight constructs of QM practices, leadership; planning;
customer focus; information analysis; people management; process management;
supplier relationship, and employee involvement to obtain the composite score of all
nine constructs. SPSS 15 software (73,220) was used for the analysis.
The scale stability assessment process is further described in three sections.
Section 4.3.1, presents the Data reduction process (item deletion) from the scale by
using factor analysis. Section 4.3.2 provides the composite score of all nine constructs
along with reliability and GFI. Finally, section 4.3.3, describes the measure of
association of scale data with cross- tabs along with chi-square test-of- independence.
Finally, the composite score of all nine constructs was obtained for unidimensionality of
scale for future analysis.
4.3.1 Data Reduction by using Component Factor Analysis
Prior to main analysis, the data reduction process was carried out by using
Principal component factor analysis with varimax. The process was supported by
Kaiser-Meyer-Olkin measure of sampling adequacy, Bartlett’s test of sphericity; and
Scree plots to examine the convergent validity and to check whether the data is
sufficiently correlated [88]
Principal components analysis (factor analysis) is used to obtain the initial factor
solution. It is a factor extraction method used to form uncorrelated linear combinations
of the observed variables. The first component has maximum variance. Successive
components explain progressively smaller portions of the variance and are all
uncorrelated with each other [128]. Factor analysis attempts to identify underlying
variables, or factors, that explain the pattern of correlations within a set of observed
variables. Factor analysis is often used in data reduction to identify a small number of
factors that explain most of the variance that is observed in a much larger number of
manifest variables. In validity assessment, confirmatory factor analysis is the first step
towards assessing the construct validity, and later building the cogeneric model of
composite scores of all constructs (128,176)
A measure has construct validity if it measures the theoretical construct that it
was designed to measure. The construct validity of each construct was evaluated by
factor analysing the measurement items of each of the factors. A rotation procedure,
Varimax, was applied in order to maximize the correlation of each item on a factor.
Varimax is orthogonal rotation method that minimizes the number of variables
that have high loadings on each factor. This method simplifies the interpretation of the
factors. A Scree plot of the variance is associated with each factor, used to determine
how many factors should be kept. Typically the plot shows a distinct break between the
steep slope of the large factors and the gradual trailing of the rest (70,176)
The Kaiser-Meyer-Olkin (KMO) measure of sampling adequacy was adopted to
identify the proportion of variance in variables due to underlying factors. High KMO
values (close to 1.0) generally indicate that a factor analysis may be useful with data. If
the value is less than 0.50, the results of the factor analysis probably won't be very
useful. Bartlett's test of sphericity tests the correlation matrix is an identity matrix, which
would indicate that variables are unrelated and unsuitable for Cogeneric Model; small
values (P ≤ 0.05) of sphericity indicates that a factor analysis is useful [73]
All factors were loaded group wise to obtain the component matrix for each
constructs. The Eigen values are kept over 1. The summary of component matrix and
loading range of factors along with KMO values for SMEs and LE is presented in Table
4.9. To analyze proportion of responses in the categories conforms to a particular
pattern a goodness of fit test was employed further. It was observed that data is
normally distributed at 99 % of confidence interval. The Histograms for SMEs (ISO
certified firms) and LE (QA winning firms) is shown in Appendix 4.4
Finally component matrix for two groups of SMEs such as ISO certified SMEs
(N=129) and TQM practicing SMEs (N=60) are shown in Table 4.10. The factor plot of
ISO certified SMEs (N=129) is shown in Table 4.11 and Scree plot is shown in figure 4.1
Table 4.9: Summary of Component Matrix of SMEs and LE
(N = 189) ISO certified SMES
Component
Item loading range for
component 1
Eigen values
% variation explained
by component
1
KMO
Bartlett's Test of Sphericity
Lead 0.756-0.818 2.59 64.90 0.80 Χ2
=251.566, dof = 6 , P= 0.00
Plan 0.701-0.811 2.89 57.90 0.79 Χ2=321.759, dof = 10 , P= 0.00
Cust 0.719-0.832 2.53 63.35 0.75 Χ2
=244.620, dof = 6 , P= 0.00
Info 0.779-0.894 2.75 68.79 0.80 Χ
2=315.86, dof = 6 , P= 0.00
Peop 0.741 -0.859 2.52 63.09 0.70 Χ
2=276.035, dof = 6 , P= 0.00
Proc 0.706 -0.816 2.42 60.64 0.70 Χ
2=,231.216 dof = 6 , P= 0.00
Supp 0.870-0.905 2.16 72.17 0.73 Χ2= 185.652, dof = 3 , P= 0.00
Empl 0.803-0.880 2.38 79.35 0.73 Χ
2=279.925, dof = 6 , P= 0.00
Perf 0.690-0.894 2.58 64.50 0.76 Χ2
= 271.556, dof = 6, P= 0.00
(N= 40) Quality Award Winning Industries
Component
Item loading range for
component 1
Eigen values
% variation explained
by component
1
KMO
Bartlett's Test of Sphericity
Lead 0.727-0.844 2.55 63.90 0.60 χ2=44.466, dof = 6 , P= 0.00
Plan 0.665-0.857 2.82 60.71 0.59 χ2=45.197, dof = 6 , P= 0.00
Cust 0.700-0.843 3.05 61.18 0.57 χ
2=66.494, dof = 10 , P= 0.00
Info 0.708-0.788 2.15 53.85 0.61 χ2=25.985, dof = 6 , P= 0.00
Peop 0.620-0.882 2.88 57.68 0.59 Χ2=63.730, dof = 10 , P= 0.00
Proc 0.693-0.756 2.67 57.30 0.58 Χ2=57.099, dof = 10 , P= 0.00
Supp 0.791-0.828 1.95 65.03 0.63 χ2=22.790, dof = 3 , P= 0.00
Empl 0.803-0.902 1.62 81.30 0.58 χ2=8.104, dof = 1 , P= 0.00
Perf 0.754-0.888 4.74 69.25 0.61 χ2=45.091, dof = 6 , P= 0.00
Table 4.10: Summary of Component Matrix of two groups of SMEs
(N = 129) ISO certified SMES
Component
Item loading range for
component 1 Eigen values
% variation explained by component 1
KMO
Bartlett's Test of Sphericity
Lead 0.617-0.812 3.62 51.80 0.80 Χ2 = 195.654 , dof = 6 , P= 0.00
Plan 0.574-0.846 4.84 60.50 0.79 Χ2=286.497, dof = 15 , P= 0.00
Cust 0.644-0.823 3.63 72.80 0.67 Χ2 = 181.869, dof = 10 , P= 0.00
Info 0.779-0.894 2.62 65.67 0.71 Χ
2=184.595, dof = 10 , P= 0.00
Peop 0.648-0.881 3.82 76.03 0.69 Χ
2=233.388, dof = 10 , P= 0.00
Proc 0.637-0.788 4.93 61.62 0.68 Χ
2= 120.111,dof = 15 , P= 0.00
Supp 0.788-0.812 2.56 64.03 0.73 Χ2= 59.427 , dof = 6 , P= 0.00
Empl 0.803-0.880 2.84 71.01 0.68 Χ
2= 97.286 , dof = 6 , P= 0.00
Perf 0.460-0.801 14.92 62.33 0.71 Χ2 = 89.944, dof = 10, P= 0.00
(N= 60) ISO certified and TQM practicing SMEs
Component
Item loading range for
component 1 Eigen values
% variation explained by component 1
KMO
Bartlett's Test of Sphericity
Lead 0.745-0.858 1.94 64.88 0.65 Χ2= 69.189, dof = 15, P= 0.00
Plan 0.627-0.789 2.63 65.88 0.60 Χ2= 41.440 , dof = 6 , P= 0.00
Cust 0.622-0.795 2.08 52.00 0.60 Χ2= 40.392 , dof = 6 , P= 0.00
Info 0.603-0.892 2.49 65.67 0.61 Χ2= 82.797, dof = 6 , P= 0.00
Peop 0.693-0.832 2.20 55.05 0.62 Χ2=46.429, dof = 6 , P= 0.00
Proc 0.777-0.855 4.12 68.90 0.65 Χ2=120.111, dof = 15 , P= 0.00
Supp 0.692-0.833 2.33 58.37 0.63 Χ2=59.427, dof = 6 , P= 0.00
Empl 0.809-0.872 2.74 68.70 0.68 Χ2=97.286, dof = 6 , P= 0.00
Perf 0.707-0.893 3.55 71.04 0.61 Χ2=89.944, dof = 10, P= 0.00
Table 4.11: Component loading on single factor for ISO Certified SMEs (N=129)
Component
Initial Eigen values
Total % of Variance Cumulative %
Lead 5.795 64.391 64.391
Plan .703 7.810 72.201
Cust .548 6.084 78.285
Info .442 4.913 83.198
Peop .416 4.620 87.817
Proc .345 3.836 91.653
Supp .280 3.114 94.767
Empl .250 2.778 97.545
Perf .221 2.455 100.000
Extraction Method: Principal Component Analysis.
987654321
6
5
4
3
2
1
0
Component Number
Eige
nva
lue
Scree Plot of lead, ..., Perf
Figure 4.1: Scree Plot for component loading
4.3.2 Composite Score of all nine constructs
Reliability is frequently defined as the degree of consistency of measures. The
internal consistency of a set of measurement items, therefore, refers to the degree to
which items in the set are homogeneous [74]. Reliability analysis is a correlation-based
procedure and coefficient of alpha is basic measure for this. The Cronbach’s alpha
measuring between the values 0.00 to 1.00 predicts the internal consistency of scale,
and for newly developed scale, the alpha value more than 0.7 is acceptable [170].The
reliability of factors needs to be determined in order to support measures of validity,
and it helps in data reduction or elimination of items on the basis of maximisation of
alpha [40, 201]. Finally, reliability assessment with Goodness-of-Fit-Index provides both
construct validity and convergent validity and also support to develop the Cogeneric
Model by fitting the data to the nearest distribution for future analysis [88].The
unidimensionality (Convergent validity) requires that there be one single latent variable
of underlying the set of measurement items and it is measured by the GFI, the values
near to 0.9 are considered evidence of good fit [26]. Table 4.12, presents the
composite score of all nine constructs for SMEs (N =189), and Quality Award winning
Industries (N=40)
Table 4.12: Composite Score of all nine constructs (For SMEs and LE)
Item (N=189)
Item
Initial
Cronbach’s α initial
Item Final
Cronbach α
Final Mean
Std. Deviation
Variance
GFI
Lead 09 0.61 04 0.81 3.62 0.94 0.88 0.93
Plan 08 0.70 06 0.84 3.31 0.90 0.82 0.92
Cust 09 0.74 05 0.80 3.26 0.94 0.88 0.93
Info 07 0.86 04 0.84 3.17 0.97 0.94 0.96
Peop 10 0.77 05 0.82 3.23 0.96 0.94 0.93
Proc 08 0.74 04 0.78 3.11 0.93 0.86 0.92
Supp 04 0.80 03 0.80 3.06 1.06 1.13 0.91
Empl 04 0.82 03 0.87 3.16 1.12 1.27 0.94
Perf 24 0.74 06 0.84 3.32 0.93 0.86 0.95
Total 83 40
Item (N=40)
Item
initial
Cronbach’s α initial
Item Final
Cronbach α
Final Mean
Std. Deviation
Variance
GFI
Lead 09 0.61 04 0.80 4.52 0.50 0.25 0.96
Plan 08 0.74 04 0.78 4.48 0.53 0.29 0.93
Cust 09 0.74 05 0.83 4.43 0.55 0.33 0.92
Info 07 0.74 04 0.86 4.46 0.45 0.20 0.96
Peop 10 0.77 05 0.84 4.51 0.49 0.24 0.94
Proc 08 0.74 05 0.84 4.50 0.48 0.23 0.95
Supp 04 0.78 03 0.81 4.45 0.51 0.26 0.91
Empl 04 0.75 03 0.84 4.31 0.69 0.48 0.96
Perf 24 0.74 07 0.85 4.46 0.41 0.17 0.95
Total 83 40
To obtain the investigations for two groups of SMEs, Table 4.13 provides the composite
score of all nine constructs of ISO certified SMEs (N=129) and TQM practicing SMEs
(N=60)
Table 4.13: Composite Score of all Nine Constructs for two groups of SMEs
Item (N=129)
Item
initial
Cronbach’s α initial
Item Final
Cronbach α
Final Mean
Std. Deviation
Variance
GFI
Lead 09 0.61 04 0.80 3.4109 .99795 .996 0.93
Plan 08 0.80 06 0.81 3.0510 .86959 .756 0.92
Cust 09 0.74 05 0.76 2.9488 .90079 .811 0.93
Info 07 0.86 04 0.86 2.9347 .86750 .753 0.96
Peop 10 0.77 05 0.80 2.9271 .92396 .854 0.93
Proc 08 0.74 04 0.80 2.8031 .86710 .752 0.92
Supp 04 0.80 03 0.81 2.7390 1.00775 1.016 0.91
Empl 04 0.82 03 0.84 2.8498 1.12508 1.266 0.94
Perf 24 0.74 06 0.83 2.9643 .77005 .593 0.95
Total 83 40
Item (N=60)
Item
initial
Cronbach’s α initial
Item Final
Cronbach α
Final Mean
Std. Deviation
Variance
GFI
Lead 09 0.60 04 0.72 4.0767 .59042 .349 0.96
Plan 08 0.70 06 0.76 3.9458 .60906 .371 0.92
Cust 09 0.54 05 0.72 3.8875 .71371 .509 0.94
Info 07 0.56 04 0.71 3.7667 .77277 .599 0.93
Peop 10 0.67 05 0.71 3.9125 .68554 .470 0.93
Proc 08 0.74 04 0.80 3.8000 .71886 .517 0.94
Supp 04 0. 70 03 0.82 3.7688 .81854 .670 0.93
Empl 04 0.72 03 0.83 3.8500 .78411 .615 0.96
Perf 24 0.64 06 0.76 4.1228 .67469 .455 0.91
Total 83 40
4.3.3 Chi-square tests of Independence
After reliability and validity assessment, the relationship between two or more
categorical variable is summarised by using frequency tables or cross-classifications of
observations. Cross-tabs are employed to test independence and measures of
association and agreement for nominal and ordinal data initially, to predict the
relationship between all quality practices (qual) and performance (perf).
The Cross tabs procedure forms two-way and multiway tables and provides a
variety of tests and measures of association along with tests of independence for
nominal and ordinal data [70,176]. The chi-square test of independence is used to test
whether the variables are independent in population and also examine the discriminant
validity of scale based in chi-square statistics [241]. For the test of independence, a chi-
square probability of less than or equal to 0.05 (or the chi-square statistic being at or
larger than the 0.05 critical point) is commonly interpreted as justification for rejecting
the null hypothesis that the row variable is unrelated (that is, only randomly related) to
the column variable to predict the variables are independent in population, and two
constructs are distinct.
Table 4.14, provides the cross-tabulation, and Table 4.15 represents the chi-square
statistics for three groups of industries.
The cross tabs indicates , that maximum respondents from ISO certified SMEs were
neither disagree nor agree (neutral) about the influence of ISO certification on
performance. However, they were agreed to the statement that ISO certification
practices have medium (moderate) influence on performance. The maximum
respondents from TQM practising SMEs were agreed to the statement that TQM
practices leads to higher performance outcomes.
The maximum respondents from Quality Award winning firms were strongly
agree to the statement that quality award guidelines are congruent with high
performance.
Table 4.14: Qual*Perf Cross Tabulation of three Groups of Industries
Only ISO certified
SMEs (N =129)
Performancea
Total
Little Influence Medium Influence High Influence
Qual
Disagree 22 11 4 37
Neutral 11 30 15 56
Agree 10 14 12 36
Total 43 55 31 129
TQM practicing
SMES ( N=60)
Performancea Total
Little Medium High Very High
Qual
Disagree 1 0 0 0 1
Neutral 0 5 6 1 12
Agree 0 2 27 14 43
Strongly
Agree 0 0 1 3 4
Total 1 7 34 18 60
QA winning
Industries (N=40)
Performancea
Total Medium High Very High
Qual Neutral 0 3 0 3
Agree 1 9 0 10
Strongly
Agree 0 11 16 27
Total 1 23 16 40 a Dependent variable performance
Finally to investigate the independence of all scale items, Pearson’s
chi-square test of independence [174] was conducted and the results are shown in
Table 4.15. The symmetric measures of three groups of industries are shown in
Appendix 4.3, which indicates higher values of Phi- coefficient, Cramer's V, and
Contingency Coefficient (≥ 0.3) for QA winning firms to represent strong association
between quality practices and performance measures.
Table 4.15: Chi-Square Tests of Independence
Value Df Asymp. Sig. (2-sided)
ISO certified SMEs (N =129)
Pearson Chi-Square 95.587(a) 9 0.000
Likelihood Ratio
97.398 9 0.000
Linear-by-Linear Association 65.739 1 0.000
N of Valid Cases 129
TQM practicing SMES ( N=60)
Pearson Chi-Square 77.279(a) 9 0.000
Likelihood Ratio 24.870 9 0.003
Linear-by-Linear Association 18.186 1 0.000
N of Valid Cases 60
QA winning Industries (N=40)
Pearson Chi-Square 14.802(a) 4 0.005
Likelihood Ratio 19.154 4 0.001
Linear-by-Linear Association 10.769 1 0.001
N of Valid Cases 40
a. 7 cells (43.8%) have expected count less than 5. The minimum expected count is .02. b. 12 cells (75.0%) have expected count less than 5. The minimum expected count is .02. c. 6 cells (66.7%) have expected count less than 5. The minimum expected count is .08.
4.3.4 Summary of Validity and Reliability Assessment
The preliminary analysis of validity and reliability provides the inference that
scale is stable, reliable and valid. The summary of factor analysis, Composite score of
all nine constructs along with the results of Chi-square tests of independence is shown
in Table 4.16.
Table 4.16: Summary of Reliability and Validity Assessment of Scale
Method Type of Firm Findings Principal factor Analysis with varimax
ISO certified SMEs (N=129) TQM practicing SMEs (N =60) QA winning Industries (N=40)
All KMO values are > 0.5 and the Bartlett’s test for sphericity (p≤ 0.01) indicates scale maintains the convergent validity [73].The two tests Bartlett’s spherical test and the measurement of sample suitability KMO confirm the suitability of data [70, 88,176]
Composite Score of all constructs
ISO certified SMEs certified SMEs (N=129) TQM practicing SMEs (N =60) QA winning Industries (N=40)
Cronbach’s α ≥ 0.7, shows the scale is reliable and acceptable for further analysis [170]. The GFI values ≥ 0.9 provides evidence of good fit [26].Both α and GFI confirms that scale is statically significant, reliable and valid and provides the construct validity [88]
Chi-square Tests of Independence
ISO certified SMEs (N=129) TQM practicing SMEs (N =60) QA winning Industries (N=40)
The chi-square statistics are significant at p≤ 0.05, indicates that scale provides discriminant validity and variables are not independent from population [155]
The Appendix 3.3 shows the final items in research instrument after deleting the items
during factor analysis. Total 40 items were finalised for SMEs and LE.
4.4 Testing the Hypotheses (Main Analysis)
After data reduction process and primary analysis for scale reliability and validity, all
research questions were addressed through testing of proposed hypotheses. This
section now presents the testing of hypotheses to obtain the empirical findings.
4.4.1 Relationship between Quality Practices and Performance Measures
The first research question (R1) of this study was intended to define the empirical
investigations to obtain the relationship between quality practices and performance
measures. Three hypotheses were proposed to address this research question:
H1-1: There is significant and positive relationship between ISO 9000 quality practices
and performance measure
H1-2: There is significant and positive relationship between TQM practices and
performance measure
H1-3: There is significant and positive relationship between QA Model practices and
performance measure
The literature has indicated that Regression Analysis was mostly preferred by
several researchers [4, 9, 67,125, 217-219, 231-232, and 253 ] to establish the
empirical relationship between quality practices and performance, since it provides both
correlation coefficients and regression coefficients (significant ‘r’ and P value) along with
ANOVA (T / F value) to predict the significance and strength of the model.
Two variables in regression equation are categorised as:
Independent Variables: The proposed eight dimensions of quality practices are
treated as the independent variables for the regression equation. They are:
Leadership (X1), Planning (X2), Customer focus (X3), Information Analysis
(X4), People Management (X5), Process Management (X6), Supplier
Relationship (X7), and Employee Involvement (X8)
Dependent Variable (Y): The Performance Measures of the industries is treated
as dependent variable.
The mathematical representation of the regression equation is as follows:
Y = b0 + b1 X1 + b2 X2 + b3 X3 + b4 X4 + b5 X5 + b6 X6 + b7 X7 + b8 X8 (4.3)
Where,
b0 = Constant, Value of dependent variable when value of
Independent variables are zero
= Also called intercepts, because it determines where the
Regression line meets the Y-axis.
b1…… b8 = Coefficients, that represents the estimated change in
Mean value of dependent variable for each unit
Change in the independent variable values.
The two regression models of SMEs (N = 189) and QA winning large enterprise (N=40) are presented in Table 4.17
Table 4.17: Regression Models of ISO SMEs and QA winning firms
Model
Depended Variable R R Square
Adjusted R Square
SE F ∆F Sig.(P)
1 Perf 0.80(a) 0.642 0.626 0.56895 40.320 .000(a)
2 Perf 0.98(b) 0.964 0.954 0.09038 102.659 0.00(c) Model 1: ISO certified SMEs
a Predictors: (Constant), empl, lead, info, peop, plan, supp, proc, cust
Model 2:QA winning firms b Predictors: (Constant), empl, lead, info, peop, plan, supp, proc, cust
The next Table 4.18, provides the regression coefficients for Independent variables
(quality practices) and dependent variable (performance measures) for SMEs
Table 4.18: Regression coefficients for Quality practices and Performance
Measures of SMEs (N =189)
Model
Unstandardized
Coefficients
Standardized
Coefficients t Sig.
B Std. Error
Beta B Std. Error
1
(Constant) 0.331 0.181 1.826 0.069
Lead 0.090 0.070 0.091 1.286 0.200
Plan 0.195 0.079 0.191 2.481 0.014
Cust 0.178 0.072 0.186 2.482 0.014 Info 0.136 0.079 0.136 1.727 0.086
Peop 0.031 0.083 0.032 0.378 0.706
Proc 0.146 0.065 0.153 2.249 0.026
Supp 0.110 0.066 0.126 1.672 0.096
Empl 0.037 0.061 0.045 .604 0.547 a Dependent Variable: perf
Putting the coefficients from the Table 4.18, the regression equation for the model will be in the following form: Y = 0.331+ 0.090 X1 + 0.195 X2 +0.178 X3 + 0.136 X4 + 0.031 X5 + 0.146 X6 + 0.110 X7+ 0.037 X8 (4.4)
As mentioned previously, based on the quality practices in SMEs; two groups of ISO
certified SMEs and TQM practicing SMEs were empirically investigated to obtain the
difference in relationship of quality practices with performance. The relationship of
quality practices and performance QA winning firms was also investigated with two
groups of SMEs. Table 4.19, presents the regression models for three groups of
industries.
Table 4.19: Regression Models for SMEs and LE
Model Depend. Variable
R R2 Adj. R2 SE F
∆F Sig. (P)
Model I Perf 0.747
(a) 0.559 0.529 0.54204 18.987 0.000(a)
Model II Perf 0.750
(b) 0.563 0.545 0.47987 8.217 0.000(b)
Model III Perf 0.982(c) 0.964 0.954 0.09038 102.659 0.000(c) a. ISO certified SMEs (N =129)
b. TQM practicing SMEs (N=60)
c. Quality Award Winning Industries (N=40)
The results of Regression Analysis for three groups are presented further in Table 4.20
Putting the coefficients from the Table 4.20, the regression equation for three models will be in the following form: Y = 0.706+ 0.146 X1 + 0.106 X2 - 0.135 X3 + 0.218 X4 + 0.130 X5 + 0.116 X6 + 0.116 X7+ 0.061 X8 (4.5) Y = 0.384+ 0.101 X1 + 0.274 X2 + 0.386 X3 - 0.115 X4 + 0.173 X5 + 0.113 X6 - 0.035 X7+ 0.051 X8 (4.6) Y = 0.048+ 0.192 X1 + 0.230 X2 + 0.20 X3 - 0.028 X4 + 0.174 X5 + 0.133 X6 + 0.111 X7- 0.022 X8 (4.7)
Table 4.20: Regression coefficients for Three Models
Model Constructs
Un standardized Coefficients
Standardized Coefficients T Sig.
B Std. Error Beta B Std. Error
1 (Constant) 0.706 0.199 3.539 0.001
Lead 0.146 0.078 0.184 1.875 0.063
Plan 0.106 0.090 0.116 1.178 0.241
Cust -0.135 0.093 -0.154 -1.451 0.150
Info 0.116 0.096 0.124 1.216 0.227
Peop 0.130 0.081 0.153 1.610 0.110
Proc 0.218 0.074 0.258 2.923 0.004
Supp 0.116 0.071 0.148 1.635 0.105
Empl 0.061 0.066 0.086 .922 0.358
2 (Constant) 0.384 0.530 0.725 0.472
Lead 0.101 0.131 0.089 0.774 0.443
Plan 0.274 0.132 0.289 2.076 0.043
Cust 0.386 0.156 0.348 2.480 0.016
Info -0.115 0.104 -0.132 -1.106 0.274
Peop 0.173 0.121 0.176 1.437 0.157
Proc 0.113 0.115 0.121 0.989 0.327
Supp -0.035 0.127 -0.043 -0.278 0.782
Empl 0.051 0.116 0.059 0.438 0.663
3 (Constant) 0.048 0.210 0.231 0.819
Lead 0.192 0.061 0.205 3.130 0.004
Plan 0.230 0.064 0.253 3.577 0.001
Cust 0.200 0.052 0.214 3.850 0.001
Info -0.028 0.045 -0.028 -0.614 0.544
Peop 0.174 0.062 0.182 2.809 0.009
Proc 0.133 0.058 0.155 2.303 0.028
Supp 0.111 0.030 0.186 3.747 0.001
Empl -0.022 0.030 -0.028 -0.747 0.460
a. Dependent Variable: perf
The results and interpretation of above findings is described in Chapter V.
4.4.2 Length of time with quality adoption and impact on manufacturing practices and Performance The second research question of this study was intended to examine the impact of the
length of time with quality adoption, on manufacturing practices and performance.
Two hypotheses were proposed to address the above Research question (R2): H2-1: In SMEs, length of time with TQM implementation is significantly correlated with
Manufacturing practices and performance in SMEs
H2-2: In large firms, length of time with TQM implementation is significantly correlated
with Manufacturing practices and performance
In past Wiele and Brown [236], Agus et al. [7], and Prajogo and Brown [180] used Bi-
variate correlations and Multiple Regression Analysis (MRA) to examine the effect of
TQM implementation years on performance of manufacturing firms. This study also
used Bi-variate analysis and MRA to investigate the effect of length of time with TQM on
performance. However, to compare the outcomes with other typology, year with ISO
9000 certification is also accounted for empirical examination along with TQM year.
The Bi-Variate analysis measures the linear relationship between two
interval/ratio level variables. Pearson's r is also referred to as the Bi-variate correlation
coefficient. Pearson's correlation coefficient between two variables is definedas the
covariance of the two variables divided by the product of their standard deviations:
(4.8) The above formula defines the population correlation coefficient, commonly represented
by the Greek letter ρ (rho). Substituting estimates of the covariances and variances
based on a sample gives the sample correlation coefficient, commonly denoted r :
(4.9)
The absolute value of both the sample and population Pearson correlation
coefficients are less than or equal to 1. Correlations equal to 1 or -1 correspond to data
points lying exactly on a line (in the case of the sample correlation), or to a Bivariate
distribution entirely supported on a line (in the case of the population correlation). The
Pearson correlation coefficient is symmetric: corr(X,Y) = corr(Y,X).The correlation
coefficient ranges from −1 to 1. A value of 1 implies that a linear equation describes the
relationship between X and Y perfectly, with all data points lying on a line for which Y
increases as X increases. A value of −1 implies that all data points lie on a line for which
Y decreases as X increases. A value of 0 implies that there is no linear correlation
between the variables.
MRA is used when; there are more than one dependent variables (Y1, Y2…..)
are likely to be tested for obtaining the relationship with independent variables (X1,
X2….). The present study has accounted two dependent variables, Y1: accounting
manufacturing performance of firms with TQM (with out accounting the year with TQM
implementation) and Y2: accounting manufacturing performance of firm with TQM
(accounting year with TQM implementation)
The figure 4.2 provides the year of ISO 9000 and TQM implementation in SMEs.
The second group of TQM practicing SMEs (N=60) was selected for the analysis, since
first group of ISO certified SMEs haven’t implemented any formal TQM programme in
their firm. The figure represents the trend, that up to 2004, ISO 9000 certification was
implemented by 36 firms (60%) while for the same duration only 27 SMEs (45%) have
implemented the TQM programme. In 2007, same number of firms (15 from 60)
implemented both ISO 9000 and TQM. The trend also represented that in recent years,
TQM implementation remained firm but ISO 9000 implementation has been declined in
SMEs.
Table 4.21 shows the bi-variate analysis of length of time with ISO 9000 and
TQM and Table 4.22 presents the MRA for manufacturing performance of TQM
practising firms. The outcomes of this analysis provided the investigation for first
hypothesis (H2-1)
The trend for ISO 9000 implementation and TQM implementation in QA winning
firms is shown in figure 4.2. It is to be mentioned here, that TQM implementation is
represented as QA guidelines implementations, since these firms have focused the
Business Excellence Models guidelines as a TQM implementation programme.
Figure
4.2: Year of
ISO 9000 and
TQM
implementation in SMEs
Table 4.21: Bi-Variate Analysis for length of time with ISO certification and TQM
Perf Lead Plan Cust Info Peop Proc Supp Empl
ISO 9000 Year
Pearson Correlation
0.47 (**)
0.35 (**)
0.33 (**)
0.25 0.18 0.07 0.08 0.06 .030
Sig. (2-tailed) .000 .006 .010 .054 .149 .564 .515 .644 .821
N 60 60 60 60 60 60 60 60 60
TQM Year Pearson 0.76 0.47 0.48 0.40 0.08 0.19 0.24 0.16 0.30
Correlation (**) (**) (**) (**) (*)
Sig. (2-tailed) .000 .000 .000 .001 .537 .143 .050 .214 .020
N 60 60 60 60 60 60 60 60 60
** Correlation is significant at the 0.01 level (2-tailed). Correlation is significant at the 0.05 level (2-tailed).
Table 4.22: MRA for TQM and Performance
Model R R Square Adjusted R Square
Std. Error of the Estimate
F
∆ F sig.
TQM firms
a
0.75 (a) 0.56 0.54 0.47 8.21 0.000(a)
TQM firms
b 0.86(b) 0.74 0.73 0.35 80.946 0.000(b)
N=60
a Predictors: (Constant), Mfg. Perf of TQM firm b Predictors: (Constant), Mfg. Perf of TQM firm with the year of implementation being accounted
The figure 4.3 presents the ISO 9000 implementation and QA guidelines (TQM)
implementation in LE. It was observed that initiation for both quality practices were
started during 2000. Up to 2002, the trend has indicated more focus on implementation
of ISO certification. The implementation of Quality Award guidelines has shown gradual
increase from 2000 to 2006, and after 2003 these enterprises preferred TQM
implementation (QA guidelines) over ISO 9000 certification.
Implementation of QP
0
2
4
6
8
10
12
14
16
18
2000 2002 2004 2006 Year
ISO cert QA Guide
No of Firms
Figure 4.3: Implementation of quality practices in QA winning firms
To examine the correlation between manufacturing practices and performance of
QA winning large enterprises, bi-variate analysis was carried out. Table 4.23 provides
the analysis for manufacturing practices and performance.
Similar to previous hypothesis, Bi-variate analysis was employed again by accounting
length of time with ISO certification and QA guidelines to test the hypothesis (H2-2) and
the results are shown in Table 4.24
Table 4.23: Bi-variate analysis for Manufacturing Practices and Performance In QA winning firms
Perf Lead Plan Cust Info Peop Proc Supp Empl
Perf Pearson Correlation 1
Lead Pearson Correlation
.858 (**)
1
Sig. (2-tailed) .000
Plan Pearson Correlation
0.87 (**)
.80 (**)
1
Sig. (2-tailed) .000 .000
Cust Pearson Correlation
0.76 (**)
0.67 (**)
0.66 (**)
1
Sig. (2-tailed) .000 .000 .000
Info Pearson Correlation
0.49 (**)
0.47 (**)
.49 (**)
0.65 (**)
1
Sig. (2-tailed) .001 .002 .001 .000
Peop Pearson Correlation
0.85 (**)
0.65 (**)
0.70 (**)
0.55 (**)
.359 (*)
1
Sig. (2-tailed) .000 .000 .000 .000 .023
Proc Pearson Correlation
0.85 (**)
0.67 (**)
0.76 (**)
0.57 (**)
.341 (*)
0.78 (**)
1
Sig. (2-tailed) .000 .000 .000 .000 .031 .000
Supp Pearson Correlation
0.71 (**)
0.55 (**)
0.49 (**)
0.41 (**)
.232 0.69 (**)
0.59 (**)
1
Sig. (2-tailed) .000 .000 .000 .008 .150 .000 .000
Empl
Pearson Correlation 0.15 0.27 0.18 0.12 .066 0.12 -0.01 0.16 1
Sig. (2-tailed) 0.35 .008 0.26 0.42 0.68 0.43 0.93 0.31
N 40 40 40 40 40 40 40 40 40
** Correlation is significant at the 0.01 level (2-tailed). * Correlation is significant at the 0.05 level (2-tailed).
Table 4.24: Bi-variate analysis with length of time with ISO Certification and
QA Guidelines
Perf Lead Plan Cust Info Peop Proc Supp Empl
ISO 9000 Year
Pearson Correlation
0.43 (**)
0.32 (*)
0.35 (*)
0.32 (*)
0.22 0.43 (**)
0.48 (**)
0.44 (**)
-0.13
Sig. (2-tailed) .005 .044 .024 .040 .168 .006 .001 .004 .420
N 40 40 40 40 40 40 40 40 40
QA Year Pearson
Correlation 0.70 (**)
0.81 (**)
0.68 (**)
0.68 (**)
0.66 (**)
0.68 (**)
065. (**)
0.28 0.25
Sig. (2-tailed) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.45
N 40 40 40 40 40 40 40 40 40
** Correlation is significant at the 0.01 level (2-tailed). * Correlation is significant at the 0.05 level (2-tailed).
4.4.3 Approaches to adopting quality in SMEs and there impact on
Manufacturing Practices and Performance
Brown and Wiele [31] have proposed the assessment typology for quality
adoption in firms and to examine its impact on manufacturing performance. There
approach was already described in section 2.4 of Chapter II. This study has adopted the
methodology proposed by them and used Analysis of Variance (ANOVA) to obtain the
empirical investigation. In its simplest form ANOVA provides a statistical test of whether
or not the means of several groups are all equal, and therefore generalizes t-test to
more than two groups. ANOVAs are helpful because they possess an advantage over a
two-sample t-test. Doing multiple two-sample t-tests would result in an increased
chance of committing a type I error.
To test the hypothesis that all treatments have exactly the same effect, The
ANOVA F–test (of the null-hypothesis that all treatments have exactly the same effect)
is recommended as a practical test, because of its robustness against many alternative
distributions. In its simplest form, the assumption of unit-treatment additivity states that
the observed response yi,j from experimental unit i when receiving treatment j can be
written as the sum of the unit's response yi and the treatment-effect tj, that is
yi,j = yi + tj (4.10)
The assumption of unit-treatment addivity implies that, for every treatment j, the
jth treatment have exactly the same effect tj on every experiment unit
The fundamental technique is a partitioning of the total sum of squares S into
components related to the effects used in the model.
(4.11)
So, the number of degrees of freedom can be partitioned in a similar way and specifies
the chi-square distribution which describes the associated sums of squares.
(4.12)
The F-test is used for comparisons of the components of the total deviation. For
example, in one-way, or single-factor ANOVA, statistical significance is tested for by
comparing the F test statistic,
(4.13)
Eight one-way ANOVA tests were conducted, one for each construct. A one-way
analysis of variance is used when the data are divided into groups according to only one
factor. The questions of interest are usually: (a) Is there a significant difference between
the groups? And (b) If so, which group is significantly different from other?
The mean value for performance was taken as the dependent variable. The
second group of TQM practicing SMES (N =60) was chosen for the analysis, since all
manufacturing firms belonging to this group, were already ISO certified and practicing
TQM in their organization.
As mentioned previously, all responses were categorised on the basis of
typology of adoption of quality practices in three sub groups:
Group 1: Implemented TQM after the ISO 9000 (ISO first, TQM later) (N=18)
Group 2: Implemented TQM and ISO 9000 simultaneously (Simultaneous ISO and
TQM) (N=15)
Group3: Implemented TQM before ISO 9000 (TQM first, later ISO 9000) (N=27)
ANOVA was used to test the hypothesis,
H3-1: In SMEs, Implementation of TQM before ISO 9000 provides significant impact on
Manufacturing practices and performance
Prior to conduction of ANOVA, the performance means of three groups were
obtained. Table 4.25 provides the means for performance of three groups.
Table 4.25: Means of Performance Measures of three groups
N = 60 N Minimum Maximum Perf Std. Deviation Variance
TQM after ISO 18 4.00 5.00 4.22 0.42779 0.183
TQM simul ISO 15 2.00 4.00 3.48 1.40408 1.971
TQM before ISO 27 4.00 5.00 4.66 0.48038 0.231
Valid N (listwise) 60
Table 4.26 presents the ANOVA of three groups.
Table 4.26: ANOVA for three groups of TQM practicing SMEs
TQM SMEs
Group
a (N=18)
Group
b (N=15)
Group
c (N=27)
N=60 Mean F Sig. Mean F Sig. Mean F Sig.
LEAD 4.02 3.330 0.005 3.98 3.624 0.040 4.07 3.282 0.018
PLAN 3.46 0.750 0.601 3.16 1.165 0.254 3.94 4.005 0.007
CUST 3.72 0.190 0.960 3.61 0.869 0.556 3.88 4.806 0.003
INFO 3.71 0.227 0.944 3.50 0.457 0.822 3.76 1.422 0.254
PEOP 3.91 3.243 0.039 3.88 1.311 0.531 3.91 3.697 0.011
PROC 3.63 0.595 0.705 3.25 0.977 0.497 3.80 5.770 0.001
SUPP 3.81 0.746 0.604 3.61 1.624 0.189 3.78 1.624 0.189
EMPL 3.66 1.546 0.248 3.53 1.997 0.180 3.85 2.236 0.077
PERF 4.22 3.48 4.66
Yr with ISO
8.22 4.50 6.60
Yr with TQM
3.38 4.50 9.78
a. Implemented TQM after ISO 9000 certification b. Implemented TQM and ISO 9000 simultaneously c. Implemented TQM before ISO 9000
4.4.4 Quality Practice significantly associated with winning the Quality Awards Many scholars in past have recommended that TQM practices are significant
with Quality Awards winning, In fact, Sun [222] and Thawesaengskulthai and Tannock
[233] mentioned that Business Excellence Models are nothing but integrated
approaches to TQM. However few scholars have examined the linkage of ISO 9000
with MBNQA (Mann, 2000) and Inaki et al. [103] mentioned that ISO 9000 practices are
congruent with QA model guidelines. To examine this issue, the argument of Samson
and Terziovski [201] was considered to test the hypothesis,
H4-1: TQM practices are significantly associated with winning of Quality Awards ANOVA was employed again to examine the means of all nine constructs for three
groups of Industries. Although ISO certified SMEs are directly not involved to obtain the
association with QA winning (since these firms haven’t implemented TQM) but in order
to predict there performance outcomes, researchers feel that independent analysis of
these firms; is also necessary and thus ANOVA table includes all three groups.
The comparison of TQM practicing SMEs and QA winning firms is presented in
Table 4.27.
Table 4.27: ANOVA for three groups representing different Quality practices
Groupa
(N=129) ISO certified SMEs
Group
b (N=60)
TQM practicing SMEs
Group
c (N=40)
QA winning Large Enter.
Mean F Sig. Mean F Sig. Mean F Sig.
LEAD 3.41 3.555 0.000 4.07 2.102 0.053 4.51 16.718 0.000
PLAN 3.05 3.803 0.000 3.88 5.772 0.000 4.46 3.657 0.040
CUST 2.94 3.190 0.000 3.94 5.720 0.000 4.44 8.062 0.004
INFO 2.89 3.450 0.000 3.76 1.845 0.090 4.32 6.292 0.009
PEOP 2.92 4.506 0.000 3.91 3.861 0.001 4.44 1.989 0.175
PROC 2.80 5.200 0.000 3.80 2.133 0.049 4.46 7.126 0.006
SUPP 2.73 3.327 0.000 3.76 1.658 0.132 4.40 6.212 0.009
EMPL 2.84 3.537 0.000 3.85 2.240 0.039 4.36 .749 0.734
PERF 2.95 4.12 4.46
Yr with ISO
5.56 10.25 6.00
Yr with TQM
8.82 10.00
Yr with QA
7.35
4.4.5 Impact of other factors on Manufacturing Performance Following Hypotheses were proposed to examine the impact of other factors on
manufacturing performance in SMEs and LE.
H5-1: There is positive and significant impact of other factors on manufacturing
performance of SMEs
H5-2: There is positive and significant impact of other factors on manufacturing
performance of ISO Certified SMEs
H5-3: There is positive and significant impact of other factors on manufacturing
performance of TQM Practicing SMEs
H5-4: There is positive and significant impact of other factors on manufacturing
performance of large enterprise
H5-5: The impact of other factors on manufacturing performance differentiates
SMEs from large enterprises
Multivariate analysis (MVA) is based on the statistical principle of multivariate
statistics, which involves observation and analysis of more than one statistical variable
at a time. Many researchers, Quazi et al, 2002, Tanner et al , 2005, Rungtusanatham et
al.[199], Youssef et al. [252-253] in past preferred Multivariate Analysis to obtain
individual effect of intercepts and combined effect of all intercepts over performance.
They mentioned the advantage of Multivariate analysis over other statistical techniques,
to obtain Multiple Analysis of Variance (MANOVA) and Multiple Regression Analysis
(MRA) simultaneously. The Tests between subject effects (Individual and group effect
of variables on fixed factors) also provides the collective effect and individual effect of
variable on fixed factor to predict among many influencing variables, which variable
mostly contributes to lowering or maximizing the overall performance (Hair et al.,
2005). Infect in Multivariate procedure it is also possible to introduce covariates (another
factor along with main factor) which is not possible in simple regression analysis and
ANOVA [253]. The means for manufacturing practices and performance is entered as
fixed factor while the other four factors, age of Industry; size of Industry (No. of
employees); annual sales turnover; and type of manufacturing were loaded as
dependent variables. No other covariates were used in this analysis. The result of (H5-
1) is presented in Table 4.28. The tests between subject of effects to represent
MANOVA (Multiple Analysis of Variance) and MRA (Multiple Regression Analysis) is
also presented in Table 4.29.
Table 4.28: Multivariate Tests(c) for SMEs (N=189)
Effect All SMEs (N=189) Value F Hypothesis df Error df Sig. Partial Eta Squared
Intercept
Pillai's Trace .959 886.644(a) 4.000 152.000 0.00 0.95
Wilks' Lambda .041 886.644(a) 4.000 152.000 0.00 0.95
Hotelling's Trace 23.333 886.644(a) 4.000 152.000 0.00 0.95
Roy's Largest Root 23.333 886.644(a) 4.000 152.000 0.00 0.95
Perf
Pillai's Trace 1.338 2.361 132.000 620.000 0.00 0.33
Wilks' Lambda .143 2.904 132.000 607.534 0.00 0.38
Hotelling's Trace 3.223 3.675 132.000 602.000 0.00 0.44
Roy's Largest Root 2.370 11.133(b) 33.000 155.000 0.00 0.70
a Exact statistic b The statistic is an upper bound on F that yields a lower bound on the significance level. c Design: Intercept+perf
Table 4.29: Tests of Between-Subjects Effects for all SMEs (N=189)
Source Dependent Variable Type III Sum of Squares
Df Mean Square F Sig.
Partial Eta
Squared
Corrected Model Age_ind 299.256(a) 33 9.068 1.445 .071 .235
NO_Empl 82974.596(b) 33 2514.382 2.481 .000 .346
Area_mfg 137.970(c) 33 4.181 .909 .614 .162
Ann_Turn 245445.055(d) 33 7437.729 8.970 .000 .656
Intercept Age_ind 4027.823 1 4027.823 641.931 .000 .806
NO_Empl 1732995.306 1 1732995.306 1710.311 .000 .917
Area_mfg 1297.059 1 1297.059 281.901 .000 .645
Ann_Turn 811690.107 1 811690.107 978.945 .000 .863
Perf Age_ind 299.256 33 9.068 1.445 .071 .235
NO_Empl 82974.596 33 2514.382 2.481 .000 .346
Area_mfg 137.970 33 4.181 .909 .614 .162
Ann_Turn 245445.055 33 7437.729 8.970 .000 .656
Error Age_ind 972.554 155 6.275
NO_Empl 157055.827 155 1013.263
Area_mfg 713.173 155 4.601
Ann_Turn 128517.908 155 829.148
Total Age_ind 10449.000 189
NO_Empl 3816750.000 189
Area_mfg 3594.000 189
Ann_Turn 2229125.000 189
Corrected Total Age_ind 1271.810 188
NO_Empl 240030.423 188
Area_mfg 851.143 188
Ann_Turn 373962.963 188
a R Squared = .235 (Adjusted R Squared = .072) b R Squared = .346 (Adjusted R Squared = .206) c R Squared = .162 (Adjusted R Squared = -.016) d R Squared = .656 (Adjusted R Squared = .583)
To test the hypotheses (H5-2) and (H5-3), Multivariate tests were employed again for
ISO certified SMEs (N =129) and TQM practicing SMEs (N=60) separately. The results
are displayed in Table 4.30
Table 4.30: Multivariate Tests(c) for two groups of SMES
Effect ISO SMEs (N=129) Value F Hypothesis df Error df ∆ F sig. Partial
eta squared
Intercept Pillai's Trace 0.947 439.82(a) 4.00 99.00 0.00 0.84
Wilks' Lambda 0.053 439.82(a) 4.00 99.00 0.00 0.75
Hotelling's Trace 17.771 439.82(a) 4.00 99.00 0.00 0.72
Roy's Largest Root 17.771 439.82(a) 4.00 99.00 0.00 0.80
Perf Pillai's Trace 0.807 0.991 104.00 408.00 0.51 0.24(c)
Wilks' Lambda 0.402 0.983 104.00 395.30 0.53 0.19(c)
Effect TQM SMEs (N=60) Value F Hypothesis df Error df ∆F Sig. Partial
eta squared
Intercept Pillai's Trace 0.911 136.13(a) 4.00 53.00 0.00 0.82
Wilks' Lambda 0.089 136.13(a) 4.00 53.00 0.00 0.88
Hotelling's Trace 10.275 136.13(a) 4.00 53.00 0.00 0.51
Roy's Largest Root 10.275 136.13(a) 4.00 53.00 0.00 0.88
Perf Pillai's Trace 0.231 1.147 12.00 165.00 0.32 0.27(c)
Wilks' Lambda 0.784 1.130 12.00 140.51 0.34 0.65(c)
Hotelling's Trace 0.258 1.109 12.00 155.00 0.35 0.07(c)
Roy's Largest Root 0.152 2.08(b) 4.00 55.00 0.09 0.74(c)
a Exact statistic (age of firm, size of firm, type of mfg., annual sales) b The statistic is an upper bound on F that yields a lower bound on the significance level. c Design: Intercept +Perf (age of firm, size of firm, type of mfg., annual sales+ performance)
The results of Multivariate tests for QA winning large firms is presented in Table 4.31
Table 4.31: Multivariate Tests(c) for QA winning Firms
Effect Value F Hypothes
is df Error df ∆F Sig.
Partial eta squared
Intercept Pillai's Trace 0.999 1250.195
(a) 3.00 5.00 0.00 0.98
Wilks' Lambda 0.001 1250.195
(a) 3.00 5.000 0.00 0.99
Hotelling's Trace 750.117 1250.195
(a) 3.00 5.000 0.00 0.97
Roy's Largest Root 750.117 1250.195
(a) 3.00 5.000 0.00 1.000
Perf Pillai's Trace 2.657 1.696 96.00 21.000 0.08 0.85(c)
Hotelling's Trace 1.039 0.974 104.00 390.00 0.55 0.21(c)
Roy's Largest Root 0.399 1.56(b) 26.00 102.00 0.05 0.19(c)
Wilks' Lambda 0.001 1.610 96.00 15.864 0.14 0.89(c)
Hotelling's Trace 38.077 1.454 96.00 11.000 0.25 0.90(c)
Roy's Largest Root 26.459 5.788(b) 32.00 7.000 0.01 1.00(c)
a Exact statistic (age of firm, size of firm, type of mfg., annual sales) b The statistic is an upper bound on F that yields a lower bound on the significance level. c Design: Intercept+perf (age of firm, size of firm, type of mfg., annual sales + performance)
Finally to investigate the hypothesis (H5-5), the impacts of other factors
differentiate SMEs with large industries. ANOVA is employed again to examine the
difference in quality practices of SMEs and Large enterprises. In statistics, analysis of
variance (ANOVA) is a collection of statistical models, and their associated procedures,
in which the observed variance in a particular variable is partitioned into components
attributable to different sources of variation.
The MANOVA and MRA of three groups of industries are presented in Table
4.32, to obtain the comparative analysis for three groups.
Table 4.32: MRA and MANOVA for SMEs and LE
SME Type
Factors R2 Adj. R
2 F ∆ F Sig.
Partial Eta Squared
Only ISO certified
Age of firm 0.249 0.058 1.30 0.177 0.249
Size of firm 0.196 -0.009 0.95 0.535 0.196
Type of Mfg. 0.215 0.015 1.07 0.387 0.215
Ann sales turnover 0.197 -0.008 0.96 0.526 0.197
TQM practicing
QA winning
firms
Age of firm 0.173 0.043 1.330 0.250 0.273
Size of firm 0.656 0.639 3.192 0.043 0.656
Type of Mfg. 0.172 0.073 0.496 0.854 0.072
Ann sales turnover 0.744 .0 710 3.072 0.039 0.744
Age of firm 0.854 0.750 3.277 0.039 0.854
Size of firm 0.899 0.738 3.949 0.018 0.899
Type of Mfg. 0.902 0.851 4.002 0.017 0.902
Ann sales turnover 1.000 1.00 1.00
4.4.6 Comparison of Performance Measures of SMEs and Large Enterprises
The research question (R6) was intended to compare the differences in
performance indicators of SMEs and LE due to deployment of quality practices. For the
empirical investigation, all quality practices were considered as single construct (means
of all eight quality practices) and all valid and reliable performance indicators were
accounted for the analysis as: product quality; operational performance; financial
performance; customer satisfaction; and employee satisfaction. In other words, this
analysis is vice versa to first research question (R1) where performance measures were
treated as single construct, while here quality practices are treated as single construct.
For ISO certified SMEs, from total twenty four items, six performance measure
indicators were found valid and reliable. Similarly, seven valid and reliable indicators
were also obtained from the QA winning large industries.
Following two hypotheses (H6-1) and (H6-2) were proposed to obtain the empirical
investigations
H6-1: There is significant relationship between performance measures and quality
practice of SMEs
H6-2: There is significant relationship between performance measures and quality
practice of large enterprises
The regression analysis methodology is employed again to test the hypotheses.
Table 4.33 provides the descriptive statistics for performance measure indicators of
both groups along with means for all quality practices. Regression Analysis is employed
further to obtain the relationship between quality means and performance measure
indicators.
Table 4.34(a) provides the Regression Model for SMEs, and Table 4.34(b) presents the
Regression Model for QA winning large industries. The regression coefficients for both
groups are mentioned further in Table 4.35(a) and 4.35(b).
Table 4.33: Descriptive Statistics for performance indicators of both groups
ISO SMEs N Minimum Maximum Mean Std.
Deviation Variance
Cronbach α
GFI
Red inspection cost
189 1.00 5.00 3.47 1.11 1.250 0.83 0.94
Prod. Features 189 1.00 5.00 3.37 1.22 1.491 0.83 0.94
Customer service 189 1.00 5.00 3.37 1.19 1.437 0.82 0.93
Labour Prod. 189 1.00 5.00 3.31 1.24 1.548 0.83 0.95
Empl motivation 189 1.00 5.00 3.30 1.30 1.690 0.82 0.92
Red Defects 189 1.00 5.00 3.29 1.29 1.667 0.84 0.96
Quality * 189 1.00 5.00 3.24 0.82 .675 0.85 0.95
Valid N (list wise) 189
QA firms N Minimum Maximum Mean Std.
Deviation Variance
Cronbach α
GFI
Cust satisfaction 40 2.00 5.00 4.62 0.74 .548 0.86 0.94
ROA/ROI 40 3.00 5.00 4.52 0.59 .358 0.86 0.93
Empl involvement 40 3.00 5.00 4.47 0.67 .461 0.85 0.94
Prod. Innovation 40 2.00 5.00 4.45 0.71 .510 0.86 0.96
Red. operation cost
40 2.00 5.00 4.45 0.71 .510 0.85 0.95
Competitiveness 40 2.00 5.00 4.42 0.71 .507 0.87 0.97
Labour Prod. 40 1.00 5.00 4.35 0.80 .644 0.87 0.96
Quality” 40 3.00 5.00 4.60 0.63 .400 0.85 0.94
Valid N (list wise) 40
* considered as single construct (mean of all eight quality practices)
Table 4.34(a): Regression Model for SMEs
Model R R Square Adjusted R
Square Std. Error of the Estimate F Sig.
1 0.78(a) 0.611 .598 .52082 47.670 .000(a)
a Predictors: (Constant), perf21, perf8, perf17, perf4, perf11, perf20 b Dependent Variable: qual
Table 4.34(b): Regression Model for large Enterprises
Model R R Square Adjusted R
Square Std. Error of the Estimate F Sig.
1 0.83(a) 0.801 0.770 .54037 3.061 0.014(a)
a Predictors: (Constant), Perf20, Perf5, Perf15, Perf3, Perf19, Perf17, Perf23 b Dependent Variable: QUAL
Table 4.35 (a): Regression Coefficients for Performance Measures Of SMEs
Model
Un standardized Coefficients
Standardized Coefficients
T Sig.
B Std. Error Beta B Std. Error
1
(Constant) 0.925 0.145 6.371 0.000
Prod_feat 0.210 0.045 0.286 4.686 0.000
Labour_Pro 0.098 0.047 0.146 2.075 0.039
Insp_cost 0.159 0.047 0.232 3.382 0.001
Defects 0.033 0.044 0.050 0.750 0.454
Cust_serv 0.123 0.047 0.193 2.629 0.009
Empl_mot 0.065 0.039 0.102 1.659 0.099
a Dependent Variable: qual
Table 4.35 (b): Regression Coefficients of Performance Measures of QA winning firms
Model
Un standardized Coefficients
Standardized Coefficients
T Sig.
B Std. Error Beta B Std. Error
1
(Constant) 3.768 0.650 5.798 0.000
Lab_prod -0.293 0.127 -0.428 -2.311 0.027
Competit 0.092 0.176 0.107 .523 0.050
Prod_inno 0.361 0.169 0.444 2.140 0.040
Open_cost -0.086 0.125 -0.129 -.692 0.049
Empl_inv -0.360 0.224 -0.386 -1.607 0.118
ROA/ROI 0.967 0.205 0.976 4.725 0.000
Cust_sat -0.490 0.170 -0.496 -2.889 0.007
a Dependent Variable: qual
The regression coefficients provided the two regression equation for SMEs and large enterprises: Y = 0.925+0.210 X1 + 0.098 X2 + 0.159 X3 + 0.033 X4 + 0.123 X5 + 0.065 X6 (4.14) Y = 3.768- 0.192 X1 + 0.092 X2 + 0.361 X3 - 0.086 X4 - 0.360 X5 + 0.967 X6 - 0.490 X7 (4.15)
4.4.7 Analysis for open ended Questions
In Questionnaire of this study, two open ended questions were mentioned to obtain the
respondents opinion about impact of quality practices on performance measures in
industries, and quality practices/ manufacturing practices definitely leads to successful
implementation of TQM programme in industries.
It is important to mention that respondents from ISO certified SMEs (N=129),
didn’t replied to the second question; which was obvious since these units haven’t
implemented formal TQM programmes in their organization. In contrast, respondents
from these firms attempted the first question to provide their opinion about impact of
quality practices on performance measures.
From TQM practicing SMEs and QA winning large enterprise, respondents have
responded to questions. The statistical summary of their responses is presented in
Table 4.36.
Table represented a very high response rate from QA firms, followed by TQM
practicing SMEs. It is important to mention that response rate is quite low for only ISO
certified SMEs in comparison with other two groups.
The ranking of performance (means of performance) of all respondents are
provided in Appendix the opinion collected from all respondents about the attributes of
performance measures and quality practises associated with successful implementation
of TQM for three groups of industries is presented in Appendix 4.4 and 4.5. .
Table 4.36: Summary of response rate for Open ended questions
Response from Industries
Question ISO certified SMEs (N =129)
TQM Practicing SMES (N=60)
QA winning Large Enterprises (N=40)
Open ended Question :01
54 (41.86%) 41(68.33%) 33(82.50%)
Open ended Question: 02
NIL 48(80.00%) 38(95.00%)
4.5 DISCUSSION
This chapter has presented many empirical examinations and investigations for
obtaining the results and interpretations of the study. Section 4.2 of this chapter
presented the organization profile and quality profile of the respondents of this study.
The analysis has indicated that ISO certified SMEs are having less number of
employees and modest annual sales turnover in comparison with other two groups of
TQM practicing SMEs and QA winning firms. The respondent’s position of ISO certified
SMEs also represented that many practioner replied to the questionnaire were from
marketing and HR department, to indicate that there is scarcity of real quality
practitioners in those firms. In fact it was observed that many proprietors of the firm also
responded to the questionnaire to raise the question that they really made justice while
replying to the questionnaire? Since, it is generalise tendency that no proprietor would
like to provide the real picture of their firm (or to blame himself) and when the issue is
related with quality practices and performance, mostly they avoid to respond and in
case of responding, it may possible to have subjective bias.
The TQM practicing SMEs has shown better position of respondents, as
General Managers and senior Managers also responded to the questionnaire. However,
like ISO certified SMEs, few proprietors (also mentioned themselves as CEO of that
firm) have replied to the questionnaire, which also leads to possibility of bias as
described previously.
The last group of QA winning firm has indicated the organizational culture,
since one third respondents were production/operations and quality managers of those
firms. In fact; it was observed that few General Managers and CEO also replied to the
questionnaire. One more evidence, researchers would like to share at this space, that
around ten quality practitioners from QA winning industries; have telephonically
informed that they have sent the response (via post/ email) and would like to know the
outcomes of the study. There sincere approach was also noted during sorting of
appropriate data for analysis, as it was observed that all forty respondents have
responded with completely filled questionnaire and few of them have also used an
additional sheet/s while responding to open ended questions.
The results and interpretations of data analysis are presented in Chapter V of
this thesis.