Children in the jigsaw classrooms showed all of the following EXCEPT for
a. a decrease in overall grades.
b. becoming less prejudiced.
c. more positive attitudes toward school.
d. an increase in self-esteem.
ANSWER: a
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Which evidence best demonstrates an environmental impact on intelligence?
a. a high correlation between the IQ scores of identical twins b. a low correlation between the IQ scores of strangers c. the rapid increase in average WISC scores seen during the past 25 years d. the stability of WISC scores seen during the past 25 years
Wertheimer's "impression of movement" was the phi phenomenon
a. True b. False
A token economy is an incentive system in which hospitalized patients with schizophrenia
a. earn "tokens" for appropriate behavior. b. lose "tokens" for disruptive behavior. c. both of these d. neither of these
Using an ordinal scale to assess leadership, which of the following statements is appropriate?
a. A has twice as much leadership ability as B b. X has no leadership ability c. Y has the most leadership ability d. all of these