Answer to Question #215257 in Biology for Doritos

Question

Outline the designs of a case-control study and a cohort study to examine the association between a high-fat diet and bowel cancer:

Answer 1

A case–control study (also known as case–referent study) is a type of observational study in which two existing groups differing in outcome are identified and compared on the basis of some supposed causal attribute.

A cohort study is a particular form of longitudinal study that samples a cohort (a group of people who share a defining characteristic, typically those who experienced a common event in a selected period, such as birth or graduation), performing a cross-section at intervals through time.