The simplest and least informative measure of spread is the:
A. interquartile range.
B. variance.
C. standard deviation.
D. range.
Answer: D
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Research on diversity in groups indicates that ____
a. diverse groups suffer from poor communication and are less creative and flexible than homogeneous groups b. diverse groups are more creative and flexible than homogeneous groups, and tend to perform better than other groups c. diverse groups are capable of being more creative and flexible than homogeneous groups, but tend to suffer from poor communication and perform worse than other groups d. diverse groups are far more communicative with one another than homogeneous groups, but tend to be less creative and flexible
Suppose that, one day, a fierce and crazy lion broke loose from the zoo. Instead of running around wildly, however, the lion calmed himself down rather quickly, walked through the crowds at the zoo, exited the facility, and made his way to a local park; here he stretched out to do some child-watching. People in the park were confused by the sudden presence of the lion. They thought to themselves:
"Isn't that a lion?" "Um, is it really dangerous to have a lion right here?" However, none of them voiced their concerns, and as a result there was no communication about the lion; the park-goers ultimately assumed that there was a reason for the lion to be there ("otherwise," they thought, "someone would have said something"). And the lion ended up staying at the park for several hours. In this example, ____ was most at play. a. the bystander effect b. pluralistic ignorance c. diffusion of responsibility d. the commons dilemma
Which drug is used in the treatment of opiate addiction and has the advantage of producing a long-lasting effect so that the person visits a clinic three times a week instead of daily?
a. Antabuse b. naloxone c. LAAM d. methodone
A particular danger of hypomanic/manic symptoms occurring with depressive symptoms is ____
a. increased risk of dangerous behaviors b. excessive fatigue post-mania c. rapid cycling d. mixed features