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.
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.With this procedure it is assumed that one can acquire knowledge of the phenomenon studied from intense exploration of a single case.
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In the view of Yin, ââ‚¬Å“the case study represents an empirical research that investigates a contemporary phenomenon within its real-life context, and includes a method comprehensive, with the logic of planning, gathering and data analysis.ââ‚¬ Can include both single case studies as multiple, as well as quantitative approaches and qualitative research.
(Yin 1994 p.23), help us, he says, to understand and distinguish the case study method to other research strategies such as the historical method and in-depth interview, the experimental method and survey.
The main objective of this work is to present the case study method as a research approach and to consider issues relevant for the conduct using this method, analyzing its advantages and disadvantages that should be considered in light of the kinds of problems and questions to be answered.
Case study can accomplish many of the same goals as other methods.Cast in a narrative format, descriptive case studies can make complex science and technology projects accessible and interesting to a non-scientist audience.The potential scope of the case study format is flexible and broad, ranging from brief descriptive summaries to long, detailed accounts.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.” (Yin, 1994) Among the possible explanations Yin considers are that people are not trained in the use of other methods, or, for governmentally sponsored research, that the difficult permission procedures required for surveys and questionnaires have made their use “a bureaucratically hazardous affair,” leading researchers to the case study method, which is relatively unencumbered by restrictions and requirements.Identifying three types of case studies ââ‚¬” descriptive, exploratory, and explanatory, Yin argues that the case study method qualifies as a serious research tool.Some of the criticism against case studies in this area relate to single-case studies.However, that criticism is directed at the statistical and not the analytical generalization that is the basis of case studies.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.