According to the discussion of the availability heuristic,
a. this heuristic is consistently more accurate than the representativeness heuristic.
b. we use this heuristic when we try to estimate probability by thinking of relevant examples.
c. this heuristic emphasizes that we ignore the conjunction fallacy.
d. this heuristic explains why we typically provide confidence intervals that are too narrow.
Ans: b
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Operational definitions
a. tell a surgeon precisely how to perform an operation on abnormal external genitals. b. may be important in determining the outcome of a study. c. specify why the media prefer studies about gender differences, rather than studies about gender similarities. d. are typically specified after the study has been completed.
Of the following, who is most likely experiencing crowding?
a. Jenna, who is at a concert squeezed in near the stage and dancing like a maniac b. Crystal, who is at a party pressed up against a wall and flirting with a handsome stranger c. Jack, who is standing in a packed stadium cheering for his football team to win d. James, who is squished in a the back of an elevator on a ride to the 98th floor
When the data are in the form of ranks we
a. need a special formula that Spearman derived. b. can just apply the standard formula to the ranks. c. need to convert the ranks to raw scores before computing the correlation. d. cannot do anything with the data.
An event's relative frequency in the population equals
a. 100%. b. the average number of times an event occurs in the population. c. the odds of the event. d. the probability of the event.