In a 24-hour period, what is a typical sleep-wake cycle for a one-week-old infant?
A. Two cycles of waking and sleeping; longest nap about 8 hours; wakefulness for about 2 hours per cycle.
B. Four cycles of waking and sleeping; longest nap about 2 hours; wakefulness for about 3 hours per cycle.
C. Six cycles of waking and sleeping; longest nap about 4 hours; wakefulness for about 1 hour during each cycle.
D. Eight cycles of waking and sleeping; longest nap about 3 hours; wakefulness for about 4 hours during each cycle.
Answer: C
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DSM-I was published in the
a. 1930s. b. 1940s. c. 1950s. d. 1960s.
Currently, the most widely used potent teratogen is __________
A) aspirin B) diethylstilbestrol (DES) C) thalidomide D) isotretinoin
What major problem with eyewitness testimony has Elizabeth Loftus uncovered?
a) Witness memories are often influenced by repression. b) Memories of details can be altered while in sensory storage. c) Memories of details can be altered while in short-term memory. d) Witnesses tend to focus excessively on the details of the event.
Assimilation occurs when
A) a pre-existing scheme is modified in some way that is more adaptive. B) new information is brought into an already existing scheme. C) a person notices something in the environment and then thinks about it. D) there is movement between equilibrium and disequilibrium.