Health authorities recommend aerobic exercise at a moderate-to-vigorous level for at least 2 ½hours per week along with strength training. About what percent of Americans actually practice this advice?
a. 20%
b. 35%
c. 50%
d. 70%
Answer: C
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If the scores on X give us no information about the scores on Y, this indicates a. a positive correlation. b. a negative correlation. c. no correlation
d. curvilinear correlation.
Who of the following would not be associated with the psychometric approach to intelligence?
a. L. L. Thurstone b. Francis Galton c. Charles Spearman d. Robert Sternberg
Demand characteristics are a problem for psychological experiments because ______.
a. participants must follow instructions in order to complete a task b. researchers cannot currently create appropriate demand stimuli c. the demands change how a cognitive process normally works d. demand characteristics cannot be studied in the context of the lab
As infants mature they store information
a. more slowly and in greater quantities. c. more rapidly and in smaller quantities. b. more rapidly and in greater quantities d. more slowly and in smaller quantities.