A researcher wants to study the relationship between smoking and lung cancer by selecting patients with lung cancer and matching them with individuals without lung cancer to compar... A researcher wants to study the relationship between smoking and lung cancer by selecting patients with lung cancer and matching them with individuals without lung cancer to compare their past smoking history. Which study design is being used?
Understand the Problem
The question is asking about the type of study design a researcher is using to investigate the relationship between smoking and lung cancer. The researcher is selecting patients with lung cancer and matching them with individuals without the disease to compare their past smoking history.
Answer
Case-control study.
The study design being used is a case-control study.
Answer for screen readers
The study design being used is a case-control study.
More Information
In a case-control study, the researcher starts with the outcome (lung cancer) and looks back to investigate the exposure (smoking history).
Tips
Confusion often arises between prospective cohort and case-control studies; remembering the temporal relationship of exposure and outcome can help.
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