For centuries South American Indians have been using cocaine without any obvious problems. This has been attributed to the Indians'
a. genetic tolerance to cocaine
b. taking cocaine orally in small amounts
c. chewing coca leaves which have a non-toxic form of cocaine in them
d. using cocaine only at high altitudes
b
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Which of the following accurately describes the chi-square distribution?
a. Symmetrical with a mean of zero b. Positively skewed with all values greater than or equal to zero c. Negatively skewed with all values greater than or equal to zero d. Symmetrical with a mean equal to n – 1
The major difference between negative punishment and negative reinforcement is negative punishment ______________ and negative reinforcement ___________
a. punishes a behavior by taking away something; encourages a behavior by taking something away. b. punishes a behavior by adding something; encourages a behavior by taking something away c. punishes a behavior by adding something; punishes a behavior by taking something away d. rewards a behavior by punishing another; rewards a behavior by taking something away
Among adolescent girls, _____ meet minimum standards of physical activity
A) more than three quarters B) about two-thirds C) about one half D) fewer than one quarter
Which of the following tactics can be helpful in a situation where the problem solver is more sure of what she doesn't want than of what she does?
a. creating subgoals c. hill-climbing b. functional fixedness d. the tactic of elimination