Carryover effects are:
A. easy to eliminate.
B. potentially problematic in both between-subjects and within-subjects designs.
C. potentially problematic only in within-subjects designs.
D. not a serious problem in either between-subjects or within-subjects designs.
Answer: C
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Which model of successful aging focuses on the assumption that late adulthood brings changes and losses in underlying capabilities that vary from person to person?
A. continuity theory B. activity theory C. selective optimization with compensation D. compensational theory
An experimenter predicts that a behavior modification program will shorten the length of stay in an institution for retarded adolescents. The null hypothesis would be _____
a. the behavior modification program will not shorten the length of stay in the institution b. the behavior modification program will not lengthen the length of stay in the institution c. the behavior modification program will not affect the length of stay in the institution d. all of these are correct
There were three friends. Maybe you've heard of them! Harry was rational, logical, and cunning. Hermione was rule-oriented, moral, and always ethical. Ron was pleasure- seeking, found it hard to delay gratification, and usually just did what he wanted. According to Freud, Hermione was mostly
a. id. b. ego. c. superego. d. libido. e. preconscious.
Episodes of impotence
A) are more common in midlife. B) are a sign of serious sexual dysfunction. C) rarely occur before age 50. D) are always caused by declining testosterone.