In a test of the effects of air pollution, groups of students performed a reaction-time task in a polluted or an unpolluted room. To what condition were students in the unpolluted room exposed?

Question

Quizplus · Accepted Answer

The unpolluted room served as the control condition, which means it is the standard against which the experimental group (students in the polluted room) is compared. The other answer choices do not accurately describe the role of the unpolluted room in the experiment.

In a Test of the Effects of Air Pollution, Groups