In a given population the mean IQ is 100 and the standard deviation is 15 points. What percent of that population should have an IQ that falls between 85 and 115?
a. 33
b. 51
c. 68
d. 77
c
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If a one-hour-old infant sticks out her tongue in response to an adult doing the same, what has occurred?
a. The infant observed the adult and then decided to stick out her tongue. b. Learning has occurred. c. Deferred imitation has occurred. d. Given the age of the child, this is most likely an imitation reflex.
With regard to mood disorders, personality traits play a significant role in determining:
A. the depth of depression B. the height of mania C. frequency of depression D. one's risk of becoming depressed
Which of the following factors does NOT seem to predict an escalation in substance use among adolescents?
a. histories of impulsive and disruptive behavior b. parent modeling of excessive substance use c. friends’ use of alcohol and other drugs d. personal values related to abstinence and sobriety
From the preschool to the school years, conflicts shift from __________ to __________
A) material concerns; relationship issues B) psychological issues; material concerns C) social issues; psychological issues D) material concerns; social issues