Doug is conducting a study of gender differences in conversation dyads. He decides to sit in the student center and watch male/male dyads versus female/female dyads. He believes that the distance between the female/female dyads will be much smaller than that between the male/male dyads. When collecting the data, he notes all cases that fit his hypothesis but tends to "miss" most cases that do not
fit his hypothesis. Doug's data collection behavior illustrates the pitfall of
a. expectancy effects.
b. reactivity.
c. expectancy syndrome.
d. experimenter blindness.
a
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Suppose that several high school algebra teachers are trying to encourage their students to use analogies more appropriately when they try to solve word problems. The teachers should instruct students
a. to make an educated guess about the answer before trying to solve it. b. to make a matrix that shows the surface similarities between a current problem and a previous problem. c. to sort a number of problems into categories, based on structural similarities. d. to use the hill-climbing heuristic.
RJ&C Consulting Company is hiring managers. Some of the tests it uses are quite cheap (such as cognitive tests). Some of them are very expensive (such as an assessment center). If the company wants to minimize the costs of its selection system, which selection approach should it use?
A) multiple cutoffs B) multiple hurdles C) multiple regression D) cross-replication