Multiple choice

A case control study design is generally a

  1. prospective study with a control group

  2. prospective study without a control group

  3. retrospective study without a control group

  4. retrospective study with a control group
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A case control study is a type of observational study involving observation of two groups for their exposure as well as outcome. Since the outcome has already occurred and the researcher looks back into the past to identify the exposures, the study is considered as retrospective in nature. Since two groups having the disease and not having the disease (control group) are used, a case control study can be considered as a retrospective study with a control group.

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