Dr. Sekaquaptua conducted an experiment on the effects of alcohol consumption on helping behavior. To make certain that participants in her sober and intoxicated conditions were, in fact, sober and intoxicated, she measured her participants' blood alcohol levels using a breathalyzer. This assessment of blood alcohol levels was a:
A) dependent measure
B) secondary dependent measure
C) manipulation check
D) pilot assessment
C
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Sounds of different frequencies activate different areas of the basilar membrane, a fact critical for the _____ account of auditory perception.
A) signal detection B) temporal code C) threshold D) place code
In a study described in the textbook, procrastinators and nonprocrastinators who were enrolled in a health psychology class and had been assigned a paper due late in the semester were compared. Researchers found that the procrastinators
a. had more symptoms of physical illness early in the semester. b. had fewer symptoms of physical illness early in the semester. c. had fewer symptoms of physical illness late in the semester. d. received better grades on their papers.
The overjustification effect suggests that when __________ are increased __________ will be decreased.
a. extrinsic motivations; behavior b. intrinsic rewards; extrinsic motivation c. behaviors; extrinsic motivation d. extrinsic rewards; intrinsic motivation e. intrinsic motivations; laziness
Feathers probably evolved for insulation in flightless dinosaurs, but they turned out to be useful for flight in birds, the dinosaurs' descendants. Feathers are considered ________ because feathers did not evolve for that purpose.
A. natural selection B. adaptation C. exaptations D. chance mutations