If you wanted to study the effects of caffeine on sleep, you could vary the consumption levels of caffeine. The administration of caffeine is

a. the treatment. c. unethical.
b. the control. d. the dependent variable.

A

Psychology

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If Ray is in his fifties, he should do better than his 20-year-old son on tests of _____ intelligence.

a) general b) crystallized c) fluid d) editorial

Psychology

Researchers have found that having strong belief that one can succeed in an area is not related to one's performance in that area

Indicate whether the statement is true or false.

Psychology