Cohen's d expresses the magnitude of the difference between groups in _____ units
a. standard deviation c. standard score
b. raw score d. standard error
A
d is a measure of the number of standard deviation units that separate the group means.
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Hymie has developed a school phobia. Hymie's parents should
A) tell him to be braver and send him to school anyway. B) insist that he return to school as well as provide training in how to cope. C) arrange a shortened school day for him. D) give him tangible rewards for each day he attends school without complaining.
Which of the following is true of adolescents who become close friends?
A) They tend to have different educational aspirations. B) They tend to share similar attitudes. C) They do not tend to have the same religious and political orientations. D) They have different patterns of drinking, drug use, and delinquency.