Erez wants to study the relative roles of genetics and environment in the attitudes people adopt. His best bet, following the methods used in existing research on this topic, is to study
A. twins adopted into different families at birth.
B. twins adopted into different families after adolescence.
C. twins adopted into the same family at birth.
D. twins adopted into the same family after adolescence.
Answer: A
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With respect to the movement ratio, what was the critical aspect of the outcome in Stage 4 of Exercise 18 that confirmed the S-S, S-S model?
a. The ratio was near-zero when the light and the tone were presented on separate trials. b. The ratio was near-zero when the tone was presented but was much higher when the light was presented. c. The value of the ratio was near-zero when the light was presented but was much higher when the tone was presented. d. The ratio remained high when the light and the tone were presented on separate trials.
Twentythreeyearold Thomas has schizophrenia. Familial association studies suggest that which of Thomas's relatives is most likely to also have schizophrenia?
a. one of his parents b. one of his grandparents c. his sibling d. his dizygotic twin e. his monozygotic twin
Danielle competes successfully at local math competitions for her middle school. The two-factor theory of intelligence predicts that Danielle probably:
A) could learn how to play a musical instrument without too much struggle. B) would struggle to learn a foreign language. C) has little interest in poetry. D) has a lower g score than she does an s score.
The accuracy and usefulness of projective tests depends largely on ________
a. the age of the client b. the skill of the examiner c. whether the client likes taking tests d. the type of disorder being diagnosed