chapter 9. descriptive research is used for following purposes to describe the characteristics of...
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Chapter 9
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Descriptive research is used for following purposes
To describe the characteristics of certain groups
To estimate the proportion of people in a specified population who behave in a certain way
To make specific predictions.
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WARNING ! Delay data collection until hypotheses are
developed who-what-when-where-why-how Determine exact variables and categories Delay data collection until you determine how the
data are to be analyzed Inexperienced researchers often question the
need for such hard, detailed decisions before collecting the data
WIDE VARIETY OF FACTS WILL NOT BE ENOUGH TO SOLVE ANYTHING !
DON’T BE TOO LATE TO SAY “If only we had collected information on that variable”
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Classification of Descriptive Studies
Descriptive
Studies
Cross Sectional
Sample Survey
Longitudinal
(store, dealer, individual) Discontinuous
Panel (omnibus)
Continuous Panel
(NPD Online Panel)
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Longitudinal vs. Cross-Sectional Data
• allows turnover analysis if panel is continuous
• allows collection of much more classification information from respondents
• allows longer and more exacting interviews
• produces fewer errors in reporting past behavior because of natural forgetting
• produces fewer interviewer—respondent interaction errors
• tends to produce more representative samples of the population of interest
• produces fewer errors due to respondent’s behavior being affected by the measurement task
• allows the investigation of many more relationships
LONGITUDINAL DATA CROSS-SECTIONAL DATA
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Brand Switching Example: Number of Families in Panel Purchasing Each
Brand
Brand
Purchased
During First
Time Period t1
During Second
Time Period t2
A
B
C
D
Total
230
310
340
120
1,000
280
290
310
120
1,000
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Brand Switching Example: Number of Families Purchasing Each Brand in Each
Period
During Second Time Period t2
Bought A
Bought B
Bought C
Bought D
Total
210
0
0
70
280
20
260
0
10
290
0
50
260
0
310
0
0
80
40
120
230
310
340
120
1,000
During
First
Time
Period
t1
Bought A Bought B Bought C Bought D Total
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Brand Switching Example: Proportion of Families Purchasing Each Brand in Each Period
During Second Time Period t2
Bought A
Bought B
Bought C
Bought D
.913
.000
.000
.583
.087
.839
.000
.083
.000
.161
.765
.000
.000
.000
.235
.333
1.000
1.000
1.000
1.000
During
First
Time
Period
t1
Bought A Bought B Bought C Bought D Total
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Secondary data has its own shortcomings.The units of measurement or classes used to
report the data may be wrongThe data may be obsolete by the time of their
applicationThe data may be incomplete When these conditions occur the researcher
turns to primary data
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Types of Primary Data Often Collected by Marketing Researchers
• Demographic/socioeconomic characteristics
• Psychological/lifestyle characteristics
• Attitudes/opinions
• Awareness/knowledge
• Intentions
• Motivation
• Behavior
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Demographic/socioeconomic characteristics Age Education Occupation Marital Status Sex (Gender) Income Social Class
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Psychological/Lifestyle Characteristics
Personality refers to normal patterns of behavior exhibited by an individual (aggressive, dominant, extrovert)
Psychographic (Lifestyle) analysis reflect ACTIVITIES, INTERESTS and OPINIONS (AIO) and CONSUMPTION BEHAVIOR.
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Attitudes/OpinionsAttitude is an individual’s preference, views, or feelings toward
some phenomenon. Opinions are verbal expressions of attitudes.
Attitude Behavior
Awareness/KnowledgeThe effectiveness of ads in TV, radio, magazine billboard and Web
banners is measured by product awareness generated by the ad using
1. unaided recall 2. aided recall 3. recognition
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IntentionsRefer to individual’s anticipated or planned future (purchase)
behavior Survey Research Center at the University of Michigan phones
500 households monthly asking 50 core questions about consumer confidence and buying intentions for big-ticket items such as appliances, car, home (Consumer Confidence Index)
Please indicate which of the following best describes your plan to buy ColaTurka?
definitely would buy probably would buy undecided probably would not buy definitely would not buy
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MotivationA person’s motives tend to be more
stable than his/her behaviorA desire for status, for safety, etc.
Mercedes vs. Volvo Behavior Behavior data are becoming
increasingly available through scanners and the Web
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Behavior ChecklistPurchase
Behavior
• What and how much
• How
• Where
• When
• Who
Use
Behavior