case study -- wiki

Case studyFrom Wikipedia, the free encyclopedia

A case study is a "published report about a person, group, or situation that has been studied over

time."[1] If the case study is about a group, it describes the behavior of the group as a whole, not

behavior of each individual in the group. Case studies can be produced by following a formal

research method. These case studies are likely to appear in formal research venues, as journals and

professional conferences, rather than popular works. The resulting body of 'case study research' has

long had a prominent place in many disciplines and professions, ranging from psychology,

anthropology, sociology, and political science to education, clinical science, social work, and

administrative science.[2][3]

In doing case study research, the "case" being studied may be an individual, organization, event, or

action, existing in a specific time and place. For instance, clinical science has produced both well-

known case studies of individuals and also case studies of clinical practices.[4][5][6] However, when

"case" is used in an abstract sense, as in a claim, a proposition, or an argument, such a case can be

the subject of many research methods, not just case study research.

Thomas[7] offers the following definition of case study:

"Case studies are analyses of persons, events, decisions, periods, projects, policies,

institutions, or other systems that are studied holistically by one or more method. The

case that is the subject of the inquiry will be an instance of a class of phenomena that

provides an analytical frame an object within which the study is conducted and

which the case illuminates and explicates."

According to J. Creswell, data collection in a case study occurs over a "sustained period of time."[8]

One approach sees the case study defined as a research strategy, an empirical inquiry that

investigates a phenomenon within its real-life context. Case-study research can mean single and

multiple case studies, can include quantitative evidence, relies on multiple sources of evidence, and

benefits from the prior development of theoretical propositions.[3] As such, case study research

should not be confused with qualitative research, as case studies can be based on any mix of

quantitative and qualitative data. Similarly, single-subject research might be taken as case studies of

a sort, except that the repeated trials in single-subject research permit the use of experimental designs

that would not be possible in typical case studies. At the same time, the repeated trials can provide a

statistical framework for making inferences from quantitative data.[9]

The case study is sometimes mistaken for the case method used in teaching, but the two are not the

same.

Contents

1 Case selection and structure

2 Generalizing from case studies

Seite 1 von 7Case study - Wikipedia, the free encyclopedia

25.01.2016https://en.wikipedia.org/wiki/Case_study

3 History

4 See also

5 References

6 Further reading

7 External links

Case selection and structure

An average, or typical case, is often not the richest in information. In clarifying lines of history and

causation it is more useful to select subjects that offer an interesting, unusual or particularly

revealing set of circumstances. A case selection that is based on representativeness will seldom be

able to produce these kinds of insights. When selecting a subject for a case study, researchers will

therefore use information-oriented sampling, as opposed to random sampling. Outlier cases (that is,

those which are extreme, deviant or atypical) reveal more information than the potentially

representative case. Alternatively, a case may be selected as a key case, chosen because of the

inherent interest of the case or the circumstances surrounding it. Alternatively it may be chosen

because of a researchers' in-depth local knowledge; where researchers have this local knowledge

they are in a position to soak and poke as Fenno[10] puts it, and thereby to offer reasoned lines of

explanation based on this rich knowledge of setting and circumstances.

Three types of cases may thus be distinguished:

1. Key cases

2. Outlier cases

3. Local knowledge cases

Whatever the frame of reference for the choice of the subject of the case study (key, outlier, local

knowledge), there is a distinction to be made between the subjestorical unity[11] through which the

theoretical focus of the study is being viewed. The object is that theoretical focus the analytical

frame. Thus, for example, if a researcher were interested in US resistance to communist expansion as

a theoretical focus, then the Korean War might be taken to be the subject, the lens, the case study

through which the theoretical focus, the object, could be viewed and explicated.[12]

Beyond decisions about case selection and the subject and object of the study, decisions need to be

made about purpose, approach and process in the case study. Thomas[7] thus proposes a typology for

the case study wherein purposes are first identified (evaluative or exploratory), then approaches are

delineated (theory-testing, theory-building or illustrative), then processes are decided upon, with a

principal choice being between whether the study is to be single or multiple, and choices also about

whether the study is to be retrospective, snapshot or diachronic, and whether it is nested, parallel or

sequential. It is thus possible to take many routes through this typology, with, for example, an

exploratory, theory-building, multiple, nested study, or an evaluative, theory-testing, single,

retrospective study. The typology thus offers many permutations for case study structure.

A closely related study in medicine is the case report, which identifies a specific case as treated

and/or examined by the authors as presented in a novel form. These are, to a differentiable degree,

similar to the case study in that many contain reviews of the relevant literature of the topic discussed



in the thorough examination of an array of cases published to fit the criterion of the report being

presented. These case reports can be thought of as brief case studies with a principal discussion of

the new, presented case at hand that presents a novel interest.

Generalizing from case studies

A critical case is defined as having strategic importance in relation to the general problem. A critical

case allows the following type of generalization: "If it is valid for this case, it is valid for all (or

many) cases." In its negative form, the generalization would run: "If it is not valid for this case, then

it is not valid for any (or valid for only few) cases."

The case study is effective for generalizing using the type of test that Karl Popper called falsification,

which forms part of critical reflexivity. Falsification offers one of the most rigorous tests to which a

scientific proposition can be subjected: if just one observation does not fit with the proposition it is

considered not valid generally and must therefore be either revised or rejected. Popper himself used

the now famous example: "All swans are white", and proposed that just one observation of a single

black swan would falsify this proposition and in this way have general significance and stimulate

further investigations and theory-building. The case study is well suited for identifying "black

swans" because of its in-depth approach: what appears to be "white" often turns out on closer

examination to be "black".

Galileo Galilei built his rejection of Aristotle's law of gravity on a case study selected by

information-oriented sampling and not by random sampling. The rejection consisted primarily of a

conceptual experiment and later on of a practical one. These experiments, with the benefit of

hindsight, are self-evident. Nevertheless, Aristotle's incorrect view of gravity had dominated

scientific inquiry for nearly two thousand years before it was falsified. In his experimental thinking,

Galileo reasoned as follows: if two objects with the same weight are released from the same height at

the same time, they will hit the ground simultaneously, having fallen at the same speed. If the two

objects are then stuck together into one, this object will have double the weight and will according to

the Aristotelian view therefore fall faster than the two individual objects. This conclusion seemed

contradictory to Galileo. The only way to avoid the contradiction was to eliminate weight as a

determinant factor for acceleration in free fall.[13]

"Despite the advantages of the case study method, its reliability and validity remain in doubt."[14]

History

It is generally believed that the case-study method was first introduced into social science by

Frederic Le Play in 1829 as a handmaiden to statistics in his studies of family budgets.[15][16]

Other roots stem from the early 20th century, when case studies began taking place in the disciplines

of sociology, psychology, and anthropology. In all these disciplines, case studies were an occasion

for creating new theory, as in the Grounded Theory work of sociologists Barney Glaser and Anselm

Strauss.[17]

The popularity of case studies in testing theory or hypotheses has developed only in recent decades.

One of the areas in which case studies have been gaining popularity is education and in particular

educational evaluation.[18][19]



Case studies have also been used as a teaching method and as part of professional development,

especially in business and legal education. The problem-based learning (PBL) movement is such an

example. When used in (non-business) education and professional development, case studies are

often referred to as critical incidents.

Ethnography is an example of a type of case study, commonly found in communication case studies.

Ethnography is the description, interpretation, and analysis of a culture or social group, through field

research in the natural environment of the group being studied. The main method of ethnographic

research is through observation where the researcher observes the participants over an extended

period of time within the participants own environment.[20]

As a final observation, using case studies to do research differs from their use in teaching. As stated

in Wikipedia's preamble to this article, the article is "about the method of doing research." For the

teaching method, the preamble refers readers to separate articles on the Case method and Casebook

method. At the same time, many people's first exposure to case studies occurred in the classroom,

and teaching case studies have been a highly popular pedagogical format in many fields ranging

from business education to science education.

The Harvard Business School has possibly been the most prominent developer and user of teaching

case studies.[21][22] Business school faculty generally develop case studies with particular learning

objectives in mind, and the classroom experiences may lead to refinement prior to publication.

Additional relevant documentation (such as financial statements, time-lines, and short biographies,

often referred to in the case study as "exhibits"), multimedia supplements (such as video-recordings

of interviews with the case protagonist), and a carefully crafted teaching note often accompany the

case studies. Similarly, teaching case studies have become increasingly popular in science education.

The National Center for Case Studies in Teaching Science[23] has made a growing body of case

studies available for classroom use, for university as well as secondary school coursework. A new

generation of scholars and educators have recently started to call for a more embodied engagement

with case studies, using dramaturgy, creative techniques, and emotional involvement, too.[24]

Nevertheless, the principles in doing case study research contrast strongly with those in doing case

studies for teaching. The teaching case studies need not adhere strictly to the use of evidence, as they

can be manipulated to satisfy pedagogical needs. The generalizations from teaching case studies also

may relate to pedagogical issues rather than the substance of the case being studied. Unfortunately,

the contrast between the two types of case studies have not always been appreciated. For this reason,

many people have had poor impressions of the validity and generalizability of case study research.

The present article will hopefully help to rectify these impressions.

See also

Casebook method

Case method

Case study in psychology

Case competition

Case report

Washington County Closed-Circuit Educational Television Project

References



1. "Merriam-Webster". Case study.

2. Mills, Albert J.; Gabrielle Durepos; Elden Wiebe. (Eds.). (2010). Encyclopedia of Case Study Research.

Sage Publications. California. p. xxxi. ISBN 978-1-4129-5670-3.

3. Robert K. Yin. Case Study Research: Design and Methods. 5th Edition. Sage Publications. California,

2014. Pages 5-6. ISBN 978-1-4522-4256-9 (http://www.sagepub.com/booksProdDesc.nav?

prodId=Book232182)

4. Rolls, Geoffrey (2005). Classic Case Studies in Psychology. Hodder Education, Abingdon, England.

5. Suzanne Corkin. Permanent Present Tense: The Unforgettable Life of the Amnesic Patient, H.M.. Basic

Books. New York. 2013. ISBN 978-0-4650-3159-7

6. Rodger Kessler & Dale Stafford. Editors. Collaborative Medicine Case Studies: Evidence in Practice.

Springer. New York. 2008. [ISBN 978-0-3877-6893-9]

7. Thomas, G. (2011). "sonia is typing..... A typology for the case study in social science following a review

of definition, discourse and structure". Qualitative Inquiry 17 (6): 511521.

doi:10.1177/1077800411409884.

8. Creswell, John (2009). Research Design; Qualitative and Quantitative and Mixed Methods Approaches.

London: Sage. ISBN 978-1-4522-2609-5.

9. Siegfried Lamnek. Qualitative Sozialforschung. Lehrbuch. 4. Auflage. Beltz Verlag. Weihnhein, Basel,

2005

10. Fenno, R. (1986). "Observation, context, and sequence in the study of politics". American Political

Science Review 80 (1): 315. doi:10.2307/1957081.

11. M. Wieviorka (1992) Case studies: history or sociology? In C.C. Ragin and H.S. Becker (Eds) What is a

case? Exploring the foundations of social inquiry. New York: Cambridge University Press.

12. Gary Thomas, How to do your Case Study (Thousand Oaks: Sage, 2011)

13. Flyvbjerg, B. (2006). "Five Misunderstandings about Case-Study Research". Qualitative Inquiry 12 (2):

219245. doi:10.1177/1077800405284363.

14. Riege, Andreas M. (2003). "Validity and reliability tests in case study research: a literature review with

'hands-on' applications for each research phase". Qualitative Market Research: An International Journal

6 (2): 7586. doi:10.1108/13522750310470055. Retrieved 2015-08-07. "Despite the advantages of the

case study method, its reliability and validity remain in doubt."

15. (Les Ouvriers Europeens (2nd edition, 1879)

16. Sister Mary Edward Healy, C. S. J. (1947). "Le Play's Contribution to Sociology: His Method". The

American Catholic Sociological Review 8 (2): 97110. doi:10.2307/3707549.

17. Barney G. Glaser and Strauss, The discovery of grounded theory: Strategies for qualitative research

(New York: Aldine, 1967). ISBN 978-0202302607

18. Robert E. Stake, The Art of Case Study Research (Thousand Oaks: Sage, 1995). ISBN 0-8039-5767-X

19. (MacDonald, B., & Walker, R. (1975) Case Study and the social philosophy of educational research.

Cambridge Journal of Education 5, pp. 211.) (MacDonald, B. (1978) The Experience of Innovation,

CARE Occasional Publications #6, CARE, University of East Anglia, Norwich, UK) ( Kushner, S.

(2000) Personalizing Evaluation. Thousand Oaks: Sage Publications)

20. Encyclopedia of Consumer Culture

21. D.A. Garvin (Sept.-Oct.2003) Making the Case: Professional Education for the World of Practice.

Harvard Magazine, 106, 1, 56-107

22. W. Ellet. The Case Study Handbook: How to Read, Write, and Discuss Persuasively about Cases.

Harvard Business School Press. Boston, MA. 2007. [ISBN 978-1-422-10158-2]

23. (http://sciencecases.lib.buffalo.edu/cs/)

24. Palmer, Grier; Iordanou, Ioanna (2015). Exploring Cases Using Emotion, Open Space and Creativity.

Case-based Teaching and Learning for the 21st Century (Libri). pp. 1938. ISBN 978 1 909818 57 6.

Further reading

Bakarada, S. (2014) "Qualitative Case Study Guidelines", in The Qualitative Report, 19(40):

1-25. Available from [1] (http://www.nova.edu/ssss/QR/QR19/baskarada24.pdf)

Baxter, P and Jack, S. (2008) "Qualitative Case Study Methodology: Study design and

implementation for novice researchers", in The Qualitative Report, 13(4): 544-559. Available

from [2] (http://www.nova.edu/ssss/QR/QR13-4/baxter.pdf)



Dubois, Anna; Gadde, Lars-Erik (2000). "Supply strategy and network effectspurchasing

behaviour in the construction industry" (PDF). European Journal of Purchasing & Supply

Management 6 (3): 207215. doi:10.1016/s0969-7012(00)00016-2.

Dul, J. and Hak, T. (2008) Case Study Methodology in Business Research. Oxford:

Butterworth-Heinemann. ISBN 978-0-7506-8196-4.

Eisenhardt, K. M. (1989). "Building theories from case study research". The Academy of

Management Review 14 (4): 532550. doi:10.2307/258557.

George, Alexander L. and Bennett, Andrew. (2005) Case studies and theory development in

the social sciences. London: MIT Press. ISBN 0-262-57222-2

Gerring, John. (2005) Case Study Research. New York: Cambridge University Press. ISBN

978-0-521-67656-4

Hanck, Bob. (2009) Intelligent Research Design. A guide for beginning researchers in the

social sciences. Oxford University Press.

Kay, L.; Youtie, J.; Shapira, P. (2014). "Signs of things to come? What patent submissions by

small and medium-sized enterprises say about corporate strategies in emerging technologies".

Technological Forecasting & Social Change: 17. doi:10.1016/j.techfore.2013.09.006.

Kyburz-Graber, Regula (2004). "Does case-study methodology lack rigour? The need for

quality criteria for sound case-study research, as illustrated by a recent case in secondary and

higher education". Environmental Education Research 10 (1): 5365.

doi:10.1080/1350462032000173706.

Lijphart, Arend. (1971) "Comparative Politics and the Comparative Method", in The American

Political Science Review, 65(3): 682-693. Available from [3]

(http://www.jstor.org/stable/1955513)

Mills, Albert J., Durepos, Gabrielle, and Wiebe, Elden. Eds. (2010) Encyclopedia of Case

Study Research. (2 vols.). Thousand Oaks, CA: Sage. ISBN 978-1-4129-5670-3

Ragin, Charles C. and Becker, Howard S. Eds. (1992) What is a Case? Exploring the

Foundations of Social Inquiry. Cambridge: Cambridge University Press. ISBN 0-521-42188-8

Scholz, Roland W. and Tietje, Olaf. (2002) Embedded Case Study Methods. Integrating

Quantitative and Qualitative Knowledge. Thousand Oaks, CA: Sage. ISBN 0-7619-1946-5

Straits, Bruce C. and Singleton, Royce A. (2004) Approaches to Social Research, 4th ed.

Oxford: Oxford University Press. ISBN 0-19-514794-4. Available from: [4]

(http://www.oup.com/us/catalog/general/subject/Sociology/TheoryMethods/?

view=usa&ci=0195147944)

Thomas, Gary. (2011) How to do your Case Study: A Guide for Students and Researchers.

Thousand Oaks, CA: Sage.

Yin, Robert. (2014) Case Study Research: Design and Methods. (5th Edition). Thousand

Oaks, CA: Sage.

External links

Case Studies from India (http://www.casestudy.co.in)

Case Studies from Colorado State University

(http://writing.colostate.edu/guides/research/casestudy/)

Retrieved from "https://en.wikipedia.org/w/index.php?title=Case_study&oldid=698676557"

Categories: Evaluation methods Scientific method



This page was last modified on 7 January 2016, at 15:55.

Text is available under the Creative Commons Attribution-ShareAlike License; additional

terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy.

Wikipedia is a registered trademark of the Wikimedia Foundation, Inc., a non-profit

organization.



case study -- wiki

Documents