A gain score analysis of a pretest-posttest design uses:
A) A single-factor ANOVA
B) Simple main effects analysis
C) Information about differences prior to the intervention (pretest scores)
D) All of the above

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The Answer of A gain score analysis of a pretest-posttest design uses:
A) A single-factor ANOVA
B) Simple main effects analysis
C) Information about differences prior to the intervention (pretest scores)
D) All of the above

A Gain Score Analysis of a Pretest-Posttest Design Uses