Research on excessive weight gain in children suggests that it is a result of both genetic
predisposition and environmental factors. Which one of the following theories of development
does this finding support?
a. Nativist
b. Empiricist
c. Interactionist
d. Operant conditioning
c. Interactionist
Psychology
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. Positive reinforcers
a. weaken behaviors they follow. b. are always learned. c. strengthen behaviors they follow. d. are always unlearned.
Psychology
Opiate drugs bind onto the same receptor sites as the body's own endorphins. Therefore, opiate drugs tend to
a. reduce anxiety. b. produce sleepiness. c. increase anxiety and agitation. d. relieve pain.
Psychology