Of the following procedures for testing statistical significance, the one most likely to be used in analyzing the data from a pretest-posttest control-group design is
A) path analysis.
B) analysis of covariance.
C) two t tests, one comparing the pretest and posttest means of the experimental group and the other comparing the pretest and posttest means of the control group.
D) a t test comparing the posttest means of the experimental and control groups.

Question

Quizplus · Accepted Answer

Analysis of covariance (ANCOVA) is most likely to be used in analyzing data from a pretest-posttest control-group design because it allows for the comparison of the groups while controlling for initial differences on the pretest scores. This method adjusts the posttest scores based on the pretest scores, providing a more accurate estimate of the treatment effect.

Of the Following Procedures for Testing Statistical Significance, the One