Nearly _______ percent of all pregnancies in the U.S. are unplanned
a. 20
b. 30
c. 40
d. 50
D
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If people construe an experience homogenously, then their cognitive processes will be:
a. similar. b. identical. c. fragmented. d. permeable.
Dreamless slow-wave NREM sleep increases after physical exertion, while REM sleep increases with daytime emotional stresses
Indicate whether the statement is true or false
Which of the following are tangible secondary reinforcers, such as money, gold stars, and poker chips that can be exchanged for food, lodgings, and other necessities?
a. token reinforcers b. social reinforcers c. unconditioned reinforcers d. latent reinforcers
Insomnia is a sleep problem characterized by:
a. difficulty in going to sleep or staying asleep through the night b. an excessive amount of lucid dreaming c. night terrors and sleepwalking d. irresistible attacks of sleepiness