Of those Americans exposed to a severely traumatic event at some time in their lives, about ________ percent will develop symptoms of posttraumatic stress syndrome
a. 10
b. 50
c. 70
d. 30
Answer: a
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Research suggests that by age __________, boys behave more independently and less compliantly than girls.
A. 5 years B. 6 years C. 2 years D. 3 months
Bodily chemicals that reduce pain, enhance positive mood, and suppress appetite are
a. endorphins. b. serotonin. c. endogenous opioids. d. epinephrine.
The computational approach builds on the information-processing approach.
Answer the following statement true (T) or false (F)
Which of the following is a disadvantage of using the range as a measure of variation?
a. It is limited because only two of the scores in the distribution are used to derive it b. It is easily distorted by an unusually high or low score in a distribution. c. It can only be used with nominal data. d. It is limited because only two of the scores in the distribution are used to derive it, and it is easily distorted by an unusually high or low score in a distribution.