Joan Bliss Wants to Find Out If There Are Gender

Multiple Choice

Joan Bliss wants to find out if there are gender differences in marital satisfaction. She has 40 sets of spouses complete the 10-item Dyadic Adjustment Scale, which is an interval measure. She used an independent samples t test to compare wives to husbands, and found husbands to be significantly happier t(78) = 6.23, p < .001. What did Dr. Bliss do wrong here?

A) One shouldn't test for gender differences; it's politically incorrect
B) Dr. Bliss should have used an F test because she had a nondirectional hypothesis
C) She should have used a Wilcoxon matched-pairs test because the dependent variable was an interval measure
D) Dr. Bliss used an independent samples t test with groups who are dependent
E) She should have done a randomized experiment to examine gender differences