It is the purpose of what type of study to find out whether one or more explanatory variables are related to a certain disease (for example whether smoking causes lung cancer)?
A)Case-control study
B)Matched-pairs experiment
C)Block design
D)None of the above

Question

Quizplus · Accepted Answer

This type of study is known as a case-control study. It involves comparing individuals who have the disease (cases) with individuals who do not have the disease (controls) in terms of their exposure to the explanatory variable(s) of interest (in this example, smoking). The goal is to determine whether there is a significant association between the explanatory variable and the disease outcome. Matched-pairs experiments and block designs are typically used in experimental studies, rather than observational studies like case-control studies.

It Is the Purpose of What Type of Study to Find