The American Psychiatric Association defines substance abuse in terms of
a. how drunk or intoxicated a person gets after ingesting a psychoactive substance.
b. whether or not the substance interferes with the person's life
c. the type and intensity of the substance abuser's biological reaction.
d. which drug is used and how much of it is consumed in one episode.
b
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The null hypothesis for a one-way ANOVA says
a. If the mean is different from the population b. At least one of the means came from a different distribution c. Means square between is greater than means square within d. All means came from the same distribution
The fact that some arousal can facilitate performance but that too much arousal impairs performance is best described by the
a. notion of homeostasis. b. inverted U function. c. James-Lange theory of emotion. d. two-factor theory. e. display rules theory.