From an evolutionary perspective, which of the following is true of theories on the need for sleep?
A. They propose that animals that are likely to serve as someone else's food sleep the most of all.
B. They propose that sleep is a way to conserve energy.
C. They propose that the search for food and water is the safest when it is dark.
D. They propose that animals are active at night to avoid becoming other animals' prey.
Answer: B
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Sudden infant death syndrome (SIDS) typically occurs in babies in which age range?
A. 1 to 6 months B. 2 to 4 months C. birth to 3 months D. 10 to 12 months
The Premack principle uses
a. social reinforcers. b. reinforcing activities. c. tangible reinforcers. d. token reinforcers.
Han-Sung is a university student who feels very anxious and on edge when he is struggling to get everything done. To feel less anxious, he listens to relaxing classical music. Which form of coping skills does Han-Sung employ?
A. Emotion-focused B. Problem-focused C. Cynical optimist D. Socially supportive
______ is a group of individuals a researcher is interested in studying.
A. Sample B. Subset C. Population D. Subject