Each of the following ways has been demonstrated to reduce the effects of aging on memory EXCEPT ______.
A. environmental enrichment
B. physical exercise
C. caloric restriction
D. cognitive training games
Answer: D
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HIV is one of the most difficult viruses to eradicate because ____
a. infected individuals remain asymptomatic for so long b. effective treatments are not available c. it has developed ways to become immune to specific treatments d. there is a lack of education worldwide
According to the studies on only children described in your text, how do Chinese only children compare to American only children?
Chinese only children have higher cognitive development, higher emotional security, and higher likeability than American only children do. || Chinese only children behave like "little emperors and empresses" who are overindulged and selfish, and American only children are typically well behaved. || Chinese only children show dramatic deficits in social skills and peer acceptance, whereas American only children don't. || Chinese only children show no deficits in social skills or peer acceptance, whereas American only children do. || || ||
Observing behavior as it happens in real-life natural settings without imposing laboratory controls is known as the __________.
A. naturalistic observation method B. experimental method C. correlational method D. psychometric approach
To minimize problems in repeated-measures designs that can result from systematic differences between successive measurements, a researcher should use a method called
a. random assignment. b. counterbalancing. c. nesting. d. expectancy control.