An infant who will have the greatest amount of brain development is the one who spends what percentage of sleep time in REM sleep?
A. 25%
B. 35%
C. 40%
D. 50%
Answer: D
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A researcher designed an experiment to determine if consumption of caffeine results in increased level of motor activity. In this study, the dependent variable is the
a. caffeine. b. motor activity. c. experimental design. d. experimenter bias.
A number of research studies have investigated gender differences in physiological and behavior reactions to stress. The evidence from these studies suggests that in comparison to females, males:
a. have a weaker physiological response to stress b. are more likely to become aggressive or flee c. enter Selye's exhaustion stage much sooner d. show stronger and more widespread physiological reactions to stress
The final stage of the general adaptation syndrome involves the
a. stage of resolution. b. alarm reaction. c. defensive reaction. d. stage of exhaustion.
Piaget believed the driving force behind development was _____________
a. punishment b. the environment c. formal schooling d. maturation