For the Following Question(s): a Research Article Included the Following

Multiple Choice

For the following question(s) : A research article included the following table:
Mean Score on Four Questionnaire Scales Before and After the Experimental Manipulation
Questionnaire Before After Change
Dominance 18.42 16.31 -2.11
Independence 17.25 21.38 4.13**
Conformity 18.97 17.20-1.77*
Nurturance 16.11 13.89 -2.22*
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*p < .05; **p < .01
-Which of the following is most likely to be true given the information on this table?

A) The hypothesis testing probably used one-tailed tests.
B) The various scales all probably had just about the same population variances.
C) The t scores are all larger than the raw change scores.
D) The hypothesis testing probably used a t test for dependent means.