A research study finds that 40-year-olds are better able to solve math problems than 80-year-olds. It is suspected that the differences in problem-solving ability result from the fact that 80-year-olds had fewer opportunities to study math and did not have access to calculators or computers. If true, the study has revealed:
a) experimenter bias.
b) a placebo effect.
c) age-related differences.
d) cohort effects.
ANS: D, Differences that occur between people who were born and raised during different time periods are called cohort effects.
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A(n) _______________ is a major independent variable in an experiment
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The view that people make decisions by determining how likely something is to happen, judging the value of the outcome, and then multiplying the two is called:
A) psychoeconomics. B) the rational choice theory. C) an algorithm. D) quantitative psychology.
Half the people who make New Year's resolutions give up within three months
Indicate whether the statement is true or false.
Interposition, texture gradient, relative size, and linear perspective all provide cues for
a. visual acuity. c. color perception. b. depth perception. d. visual threshold.