Multiple Choice
Which of the following techniques is an accepted method of controlling for regression artifacts?
A) comparing observed posttest scores with a predicted posttest score
B) matching posttest scores in the treatment group to scores in a separate "control group," after assignment to treatments has been determined
C) comparing outcomes for participants in a treatment group to those from a control group using a score that reflects the pattern of responses on several covariates
D) A and B
E) A and C
F) all of the above
Correct Answer:
Verified
Correct Answer:
Verified
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