Which of the following has not been suggested as being related to the signs of pubertal development occurring earlier in girls in the U.S. in recent years?
a. obesity
b. exposure to environmental contaminants
c. exposure to sexually explicit content on television
d. an increase in sexual activity
D
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Ricardo and Luis are out walking. Luis says, "Hey, I've got a pebble in my shoe," and proceeds to take off his shoe and to remove the pebble. "That feels better," says Luis. Ricardo believes that Luis' behavior of removing the pebble is a(n) ____ because it increases the chance that Luis will repeat the behavior if another pebble gets in his shoe.
A. positive punisher B. positive reinforcer C. negative reinforcer D. negative punisher
According to research as many as ________ percent of the general population suffer from social phobia at some point in their lives
a. 3 b. 12 c. 23 d. 33
Which drug is an atypical antipsychotic?
A) Risperidal B) Thorazine C) Mellaril D) Haldol
A reflexive reaction that is reliably elicited by an unconditioned stimulus is called a(n) _____ response.
A) reinforced B) sensitized C) unconditioned D) conditioned