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Case study research design methods

Case study research design methods article provides insufficient context for those unfamiliar with the subject.

Please help improve the article case study research design methods a good introductory style. Some of the considerations here are shared under the more general topic of design of experiments but there can be others, in particular related to patient confidentiality and ethics. When choosing a study design, many factors must be taken into account. Different types of studies are subject to different types of bias.

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For example, recall bias is likely to occur in cross-sectional or case-control studies where subjects are asked to recall exposure to risk factors. The ecological fallacy may occur when conclusions about individuals are drawn from analyses conducted on grouped data. The nature of this type of analysis tends to overestimate the degree of association between variables. Additionally, seasonal variations and weather patterns can affect a seasonal study. The term retrospective study is sometimes used as another term for a case-control study. This use of the term «retrospective study» is misleading, however, and should be avoided because other research designs besides case-control studies are also retrospective in orientation.

Superiority trials are designed to demonstrate that one treatment is more effective than a given reference treatment. This type of study design is often used to test the effectiveness of a treatment compared to placebo or to the currently best available treatment. Non-inferiority trials are designed to demonstrate that a treatment is at least not appreciably less effective than a given reference treatment. Equivalence trials are designed to demonstrate that two treatments are equally effective. A dictionary of epidemiology», 6th edn, New York: Oxford University Press.

This article needs additional citations for verification. Not to be confused with case method, used in teaching. 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. In doing case study research, the «case» being studied may be an individual, organization, event, or action, existing in a specific time and place.

Segregation is usually the result of a long period of group conflict, with one group having more power and influence than another group.
Does California have a giant circle because Californians buy more iPads than their counterparts across the country?

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