Which of the following improves in middle childhood, allowing children to respond quickly to changing situations, like hitting a tennis ball or catching a baseball?
A. reaction time
B. eye-hand coordination
C. myelination
D. muscular virility
Answer: A
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A variable, other than the independent variable, that appears to have influenced the dependent variable in a study is referred to as
a. a covariate. b. an extraneous variable. c. a redundant variable. d. an inverse bias.
Which of the following is NOT true of the problem of demand characteristics?
a. Demand characteristics are less important in research that does not involve deception and in which participants are encouraged to perform as accurately as possible. b. Avoiding demand effects is important consideration in social psychological research. c. Participants in social psychological research often do not comply with the demands of the experimenter. d. Demand characteristics are a source of experimental error.
Adherence to gender-role expectations
a. varies very little across cultures. b. is stronger in individualistic societies that emphasize personal achievement. c. is stronger in collectivistic cultures that emphasize the need to maintain social harmony. d. is high in all cultures, regardless of the particular world-view variations that may exist in other social dimensions.
Rats that are raised in a complex environment have more
synapses and longer dendrites in their brains than rats raised in a simpler environment. These differences in the rats' brains due to environmental experiences illustrate the brain's a. saltatory conduction. b. resiliency. c. neuroplasticity. d. neurogenesis.