The poison of the black widow spider works by causing an outpouring of ______
a. dopamine c. endorphins
b. serotonin d. acetylcholine
d
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A researcher uses a repeated-measures ANOVA to test for mean differences among three treatment conditions using a sample of n = 10 participants. What are the df values for the F-ratio from this analysis?
a. 3, 9 c. 3, 18 b. 2, 9 d. 2, 18
One change required to administer systematic desensitization with a group is to
a. formulate generic visualizations. b. lengthen therapy sessions. c. establish a group hierarchy. d. elaborate follow-up sessions.
A pigeon learns to peck only at a red disk. It will not peck at an identical disk of any other color. This illustrates the concept of ___________
a. extinction b. discrimination c. avoidance training d. desensitization
The textbook suggests that the DSM was developed, in part, to help professionals differentiate between soldiers who could be treated and redeployed, on the one hand, and soldiers who probably needed longer-term care, on the other. The example BEST illustrates a function of classification labeled ______.
a. prediction b. nomenclature c. information retrieval d. basis for theory