Question
What is the primary purpose of having a control group in an experiment?
to repeat the studies multiple times
to eliminate the effects of other variables
to ensure random sampling
to apply the treatment
to repeat the studies multiple times
to eliminate the effects of other variables
to ensure random sampling
to apply the treatment
Answers
GPT-4o mini
The primary purpose of having a control group in an experiment is **to eliminate the effects of other variables**. A control group allows researchers to compare the results of the experimental group (which receives the treatment) against a group that does not receive the treatment, helping to isolate the effect of the independent variable and determine if any observed changes are due to the treatment itself rather than other factors.