A normal distribution has a mean of µ = 80 with ? = 20 . What score separates the lowest 30% of the distribution from the rest of the scores?
a. X = 90.4 c. X=110
b. X = 69.6 d. X = 50
B
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Research suggests that people often learn to behave in particular ways based on modeling (observing and copying others' behaviors). Which statementbest describes how aggressive and nonaggressive models work?
a. Aggressive models can increase aggressive behavior. However, nonaggressive models do not appear to have much impact on people's behavior. b. Aggressive models can increase aggressive behavior and nonaggressive models can decrease it. c. Aggressive models do not appear to have much impact on people's behavior. However, nonaggressive models can decrease aggressive behavior. d. Neither aggressive models nor nonaggressive models appear to have much impact on people's behavior.
Which of the following should be included in a study debriefing?
A. explanation of deception B. informed consent C. guarantee of confidentiality D. right to refuse participation
When 12-month-old Barrett's mom asks him, "Where is your teddy bear?" Barrett responds by pointing to the place on his bed where the teddy bear usually rests. Barrett is displaying
A) habituation and recovery. B) inferred imitation. C) displaced reference. D) means–end problem solving.
Approximately __________ of U.S. young people with a high school diploma have no current plans to go to college
A) one-third B) one-fourth C) one-fifth D) one-sixth