The sum of all scores divided by the number of scores summed in a sample is equal to the ______.
A. sample variance
B. range
C. sample standard deviation
D. sample mean
Answer: D
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"I am afraid to have a panic attack in public-it's very embarrassing and I may not be able to get out before the attack starts." The description most reflects:
A. social phobia B. obsessive-compulsive disorder C. agoraphobia D. generalized anxiety disorder
Oscar is suspicious, resentful, antagonistic, distrustful of others, and frequently angry. Oscar is displaying characteristics consistent with ____, which is a risk factor for ____
a. ?hostility; smoking b. ?hostility; coronary heart disease c. ?dispositional optimism; alcoholism d. ?dispositional stress; coronary heart disease
Burns and Dunlop reported that ten years after the divorce of adolescents' parents, many adolescents were still angry toward their:
A) mother. B) father. C) stepmother. D) stepfather.
Ryan is a long-distance swimmer. Ryan can expect his speed to drop off at an accelerating pace when he reaches about age
A) 40. B) 50. C) 60. D) 70.