max is testing how caffeine affects test scores. what will his control group be in this experiment? a group…

max is testing how caffeine affects test scores. what will his control group be in this experiment? a group where test scores are not measured a group that does not receive caffeine, to act as a comparison a group that receives caffeine to act as a comparison a group where test scores are measured
Answer
Brief Explanations:
In an experiment testing the effect of a variable (here, caffeine), the control group is the one that does not receive the variable being tested, to provide a baseline for comparison.
Answer:
B. A group that does NOT receive caffeine, to act as a comparison