Interpreting the Results Since Bama Predicted Group Differences, He Performed

Multiple Choice

Interpreting the Results Since Bama predicted group differences, he performed three a priori tests to analyze a three-group experiment.What was wrong with this decision?

A) He increased the risk of Type 2 error.
B) He performed too many a priori tests.
C) He should have performed an F test before the a priori tests.
D) He should have performed three t tests because they are more conservative.