Some research suggests that drugs given to enhance dopamine levels in patients with Parkinson's disease may cause patients to become more:

A) aggressive.
B) despondent.
C) anxious.
D) impulsive.


D) impulsive.

Psychology

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The validity coefficient of an aggression scale is .5 . Using a score on this scale as a predictor of domestic violence, how much of the variability in domestic violence can be attributed to scores on the aggression scale?

a. 25% b. 50% c. none d. indeterminate

Psychology

The Wide Range Achievement Test-3 has been criticized because

a. it measures intelligence rather than achievement. b. it is difficult to administer. c. sample sizes in validity studies are too small. d. it is not applicable to children younger than 10 years of age.

Psychology

Cognitive theories of depression generally relate to mild or moderate cases of depression or what is sometimes called nonbiological, environmentally based, or depression

a. exothermic b. exogenous c. interpersonal d. internal

Psychology

Which claim is most consistent with the evolutionary perspective of sleep?

A. The function of sleep is similar to that of hibernation. B. More highly evolved species, such as humans, need more sleep than other species. C. During sleep, we relive the experiences of past generations. D. Sleep enables the body to repair and restore itself to promote survival.

Psychology