Yin proposed three remedies to counteract this: using multiple sources of evidence, establishing a chain of evidence, and having a draft case study report reviewed by key informants.Internal validity is a concern only in causal (explanatory) cases.Tags: Essays On Of My DreamsResearch Paper Essay ExampleStatistics Research PaperThe Rich Get Richer And The Poor Get Prison EssayMaking A Business Plan For A New BusinessSmoke Signals EssayThe Others Argumentative EssaysExample Of An Outline For A Research Paper In ApaDissertation Writing StylesTemplates For A Business Plan
This is usually a problem of “inferences” in case studies, and can be dealt with using pattern-matching, which has been described above.
(Yin 1994) External validity deals with knowing whether the results are generalizable beyond the immediate case.
In order to demonstrate its application, it indicates its most common advantages and constraints, stressing the important role played by the researcher, who must be careful about generalizations, striving constantly for scientific rigor in the treatment of the subject.
The case study method is considered a kind of qualitative analysis (GOODE, 1962) and has been considered, according to Yin (1994, p.
The method often is presented as being more appropriate for exploratory research and particularly useful for hypothesis generation and this may have contributed to complicate the understanding of what the study method cases, how it is designed and conducted.
(Yin, 1994) According to different authors, the case study has originated in medical research and psychological research, with analysis in detail of an individual case that explains the dynamics and pathology of a given disease.
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Despite its advantages, the case study method is traditionally considered to have several major limitations as an evaluation tool.
Descriptive case studies are qualitative and unreliable.