If group A1has 14 participants and group A2 has 12 participants, then tind on the two groups would have _____ degrees of freedom

The DSM-5 diagnosis of a substance use disorder requires _________specific features or symptoms occurring during the preceding ________period

a. two or more; six month c. three or more; one year b. three or more; six months d. two or more; one year

Using IQ scores as the sole measure of giftedness

a. ignores the poor adjustment that characterizes such persons. b. is the quickest way to identify creative individuals. c. ignores special talents. d. identifies only persons from upper socioeconomic levels.