Select the correct definition of a cohort study: Question 2Select one:a.Cohort studies start with people who do or do not have a disease and examine their past for particular exposures.b.Cohort studies start with people who are free of disease, classify them based on exposure, and follow them to measure an outcome.c.Cohort studies measure exposures and outcomes at the same time.d.Cohort studies assign people to receive an exposure or to be a control and follow them forward in time to assess outcome development.

True or False: A cohort study is the best method for associating cause and effect when exposure or treatment cannot be controlled by the investigator but when we want to be certain that exposure preceded the health outcome.True False

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.

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