In Assessing the Relative Merits of Case‐control and Cohort Studies

Multiple Choice

In assessing the relative merits of case‐control and cohort studies, which one of the following statements is correct?

A) A cohort design is more suited to the study of rare diseases
B) Case‐control studies are more costly
C) Case‐control studies take longer to complete
D) Unlike case‐control studies, cohort studies permit the direct calculation of incidence rates