Attention-deficit/hyperactivity disorder is characterized by a persistent pattern of difficulties that include __________.
A. negativistic, defiant, disobedient, and hostile behavior toward authority figures
B. the violation of rules and a disregard for the rights of others
C. excessive anxiety about separation from major attachment figures
D. sustained attention and/or impulsiveness and excessive or exaggerated motor activity.
Answer: D
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REM behavior disorder results from _________________
a) too much sleep b) not enough sleep c) failure of the brain mechanisms to block brain signals to the muscles d) deterioration of the medial hypothalamus
The idea that physical attractiveness is inherently subjective is supported by research demonstrating that
a. specific facial features tend to be associated with physical attractiveness. b. there is a high degree of cross-cultural consistency in ratings of attractiveness. c. liking someone increases that person's perceived physical attractiveness. d. averaged faces are judged more attractive than individual faces.