Dr. Hand conducted a study with experimental and control groups who were given pretest and posttest measures. Before analyzing his data, Dr. Hand adjusted the participant's posttest scores based on their performance on the pretest. The procedure he used to adjust the scores is known as:
A) Analysis of variance
B) Analysis of covariance
C) Analysis of regression
D) Analysis of discontinuity

Question

Quizplus · Accepted Answer

Analysis of covariance (ANCOVA) is used to adjust posttest scores based on pretest scores, controlling for initial differences.

Dr Hand Conducted a Study with Experimental and Control Groups