Short Answer
__________ is the tendency of groups that have been selected for study on the basis of extreme high or low scores to regress or move toward the mean or average on second testing.
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Q39: _ refers to accuracy or correctness in
Q40: The one-group before-after design,or one-group pretest-posttest design,eliminates
Q41: The problem of _ has been a
Q42: _ pretest bias)refers to the bias and
Q43: Which of the following serves as an
Q45: Control group is the group that is
Q46: What advantage does a time-series design have
Q47: Cross-sectional studies are studies of the same
Q48: _ point to the tendency of pretests
Q49: Which of the following refers to other