Transcription of Study Design - Jones & Bartlett Learning
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Study Design - Jones & Bartlett Learning
222 Study DesignDesigning a research Study is not a simple task. Just as the key elements anddeterminants of outcomes of war are fixed even before it is fought ( , at itsplanning stages), the success of a Study is also largely determined at its initialplanning stage. Successful studies need to address two important dimen-sions: reliability and validity. A reliable Study should be replicable, providingsimilar results if the same Study parameters are applied. Validity is concernedwith the ability of the Study to correctly answer the question it asks. Internalvalidity deals with the ability of the Study to correctly infer about the relation-ship between the independent variables and the outcome(s) being validity deals with application of the findings to other observations,samples, or populations and implies generalizability of the Study results.
Types of Study Designs: Observational Studies 27 BOX 2.2 General Properties of Case-Control Studies(Continued) • Hospital/clinics—hospital and clinic attendees; their disease status should, however, not be related to the disease being studied, and referral pattern should be similar to …
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5. EPIDEMIOLOGICAL STUDIES, Observational and experimental epidemio-logical studies, Meta-analysis of Observational Studies, Examples of research questions, Observational studies, All Clinical Trials Are Created Equal, Clinical, Clinical trials, University of Virginia, Developing Budgets for Research Projects, Levels of Evidence