An investigator studies the relationship of physical fitness to self esteem in a group of 10 year olds, then measures the relationship in the same children one year and two years later. This is a(n) _____ study
A) cross-sectional
B) replicational
C) experimental
D) longitudinal
Answer: D
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The triphasic model of sexual response includes: a. Excitement, resolution, orgasm. b. Arousal, orgasm, resolution
c. Desire, excitement, orgasm. d. Excitement, plateau, surrender.
The average threshold for human vision is a candle flame seen from __________ on a dark, clear night
a) 1 mile b) 15 miles c) 7.5 miles d) 30 miles
Current surveys estimate that there are about how many different gangs in the United States?
A) 12,000 B) 6,000 C) 25,000 D) 750
A psychoactive substance is a substance that _____.
a. creates a psychological addiction b. produces changes in psychological states c. produces withdrawal symptoms when stopped d. alters body chemistry without affecting the active psychological state