Indicate the two types of comparative studies, and indicate the difference between them.

Expert Solution

They are called:

(1)Retrospective or ex post facto

(2)Prospective

Retrospective	Prospective
Examine an effect	Determination of a cause
Look back in time to determine cause	Looks forward in time to determine effect on subjects
Starting with an effect and seeking possible causes	Starts with cause and investigates its effects on some variable
Applied In Educational Research	Applied in health care in particular clinical trials,Epidemology
Case control studies	cohort studies

orchestra answered 2 years ago

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