Which of the following is an example of an ill-defined problem?
a) The completion of a scientific stud
b) The proof of a geometry theorem
c) The Tower of Hanoi puzzle
d) The repair of a broken bicycle chain
A
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There are often very few observations per condition when studying complex cognition because
a. it is often necessary to test each participant individually in a time-consuming procedure. b. there is very little variability among subjects in performance of these tasks. c. the variability among subjects can be compensated for statistically. d. statistical power is not affected by the number of observations obtained.
During middle childhood, children's fears become:
a. more severe. c. more realistic. b. more imaginary. d. less linked to anxiety.
The defining feature of Tourette's disorder is:
a) the presence of vocal or motor tics. b) an irresistible urge to steal objects that are not needed. c) an irresistible urge to set fires just for the joy of seeing them burn. d) an unusual lack of interest in relationships with other people.
Which of the following would NOT be considered an environmental and behavioral factor related to cancer?
a) Poor nutrition b) Alcohol use c) Exposure to sunlight d) Family history of cancer