According to evolutionary developmental theory, the emergence of social emotions and social behavior such as play evolved because of the survival value of __________
a. getting along within the social group
b. imprinting
c. classical conditioning
d. positive reinforcement
Answer: A
Psychology
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Compared to men, middle-aged women report
A) a greater desire for other-sex friends. B) less satisfaction with their friendships. C) providing their friends with more emotional support. D) a greater willingness to break off a friendship.
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If a researcher reported for an independent-groups t test that t(18) = 2.90, p < .01, how many subjects were there in the study?
a. 18 b. 20 c. 10 d. 9
Psychology