Multiple Choice
In a nonrandomized control group, pretest-posttest design, the recommended procedure for analyzing test results is a(n)
A) t-test of the difference between pretest and posttest means for both the experimental and the control group.
B) four-way analysis of variance.
C) analysis of covariance, in which the posttest means are compared using the pretest means as the covariate.
D) analysis of variance of the mean pretest-posttest change for the experimental and control groups.
Correct Answer:
Verified
Correct Answer:
Verified
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