REM sleep is associated with ____
a. tension and activity of the postural muscles
b. PGO waves in the brain
c. a highly synchronized EEG pattern
d. decreased heart rate
b
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A psychologist is doing research for a pharmaceutical company. The drugs he is testing are numbered so that he does not know what they are, nor does he know which participants are receiving which drugs
Participants are also unaware of differences in treatments. The control that is being used in this study is called a a. within-subjects control. b. correlational method. c. double-blind control. d. random assignment by chance procedure
The tendency of people to exert less effort on a task when working in a group than when working individually is called ______
a. groupthink b. social conformity c. social loafing d. malingering