A controlled experiment ensures that differences in outcomes of different test groups are due to ________.
A) demographic differences between test subjects
B) multiple factors in the test environment
C) differences in test environment
D) differences in test administrator
E) different treatments of the variable under study

Question

Quizplus · Accepted Answer

A controlled experiment is designed to test the effects of different treatments or interventions on a variable under study, while controlling for other potential influences. This means that any differences in outcomes between test groups should be attributable to the different treatments of the variable under study, not to other factors.

A Controlled Experiment Ensures That Differences in Outcomes of Different