If random samples, each with n = 4 scores, are selected from a normal population with µ = 80 and ? = 36, what is the standard error for the distribution of sample means?
a. 4 c. 18
b. 9 d. 36
C
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In which stage of children's friendships do friendship involve empathy, understanding, and self-disclosure, and friends share unconditional positive regard and intimate communication?
a. Stage 1 c. Stage 3 b. Stage 2 d. Stage 4
Hull's theoretical system may be seen as a positive contribution to the study of human behavior because
a. it accounts for all variables as well as all relationships. b. it results in useful predictions of behavior. c. it vastly contributed to further learning theory building. d. it debunks reinforcement is important in learning.
After doing a large-scale cross-sectional study, a researcher finds that each successively older group does slightly less well on a test of memory for 10-digit telephone numbers. Which of the following is the best interpretation of this result?
a. A basic biological change underlies the observed steady reduction of memory skill. b. The differences can be explained by gender of the participants. c. The difference has nothing to do with practice of memory skills. d. No interpretation can be made using this result.
Sam's parents grounded him because he failed two of his classes. After being on his best behavior for weeks, his parents agreed to let him out to see a movie with his friends, but only if he was home by 10 pm. When he returned home after 1 am, his father met him at the door and shook his head without saying a word, or knowing how to feel. He eventually told Sam that he was disappointed in his behavior. The somatovisceral afference model of emotion (SAME) suggests that his dad's delayed reaction was likely due to him needing more time to
A. express himself because his emotion was so intense. B. cognitively process his intense, specific physical sensations. C. cognitively process his general negative arousal. D. keep his emotional reservoir from spilling over.