In an experiment, the control group should be treated in the same way as the experimental group except for ____________?

A. receiving different levels of the confounding variable

B. completing posts-test measures

C. completing pretest measures

D. receiving different levels of the independent variable

Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.

Discuss the answer or suggest a sourced correction
Thank you for contributing.
Your comment was submitted and will appear after editorial review.

Your email is used only for moderation and is never displayed. Spam, copied material and fabricated endorsements are rejected.