Question 8Answera.Case-controlb.Retrospective cohortc.Prospective cohortd.Cross-sectional

When is the cohort formed for a Retrospective Study? In the past Today In the future

Cohort studies allow true determination of incidence of an outcome.Question 2Select one:TrueFalse

Select the correct statement. A retrospective cohort study....Question 3Select one:a.is the same as a case-control study as they are different names for the same retrospective study design.b.goes back in time to establish the cohort and follows them up in the present.c.divides participants based on outcome and then establishes exposure.d.is also called a nested case-control study.

A prospective cohort study is a higher level of evidence (less prone to bias) than a retrospective cohort study.

Confounding and bias is more a problem in prospective cohort studies than retrospective cohort studies.