Kim and Mary are both participating in an experiment examining the effect of adding graphic warning labels on cigarette packages to the written warning labels that are already required by law. Kim saw a package in which half of the package had a picture of diseased lungs included with the written warning label, whereas Mary only saw the written warning label without a picture on the package the researcher showed her. Kim was part of which group in the experiment?
A) primary group
B) covariate group
C) experimental group
D) control group

Question

Quizplus · Accepted Answer

The experimental group is the group that receives the intervention being tested, which in this case is the addition of graphic warning labels to cigarette packages. Kim saw a package with a picture of diseased lungs in addition to the written warning label, so she was part of the experimental group. The control group, on the other hand, does not receive the intervention and is used as a baseline for comparison. Mary saw a package with only the written warning label, so she was part of the control group. The primary group and covariate group are not relevant to this scenario.

Kim and Mary Are Both Participating in an Experiment Examining