Hal Administers a Self-Esteem Measure to His Sample Before the Sessions

Multiple Choice

Hal administers a self-esteem measure to his sample before the sessions begin and after a semester of the Saturday Esteem Program, he measures their esteem again. Which type of analysis is Hal likely to use to test for significant differences in his group?

A) The t test for independent samples
B) The t test for nonindependent samples
C) Analysis of difference scores
D) Analysis of covariance