Based on your text's discussion of the Flynn effect, how might the IQ of the average 18-year-old today compare with that of her counterpart 60 years ago?
a) The IQ score of the average 18-year-old today is about 15 points lower than that of her counterpart 60 years ago.
b) The IQ score of the average 18-year-old today is about the same as that of her counterpart 60 years ago.
c) The IQ score of the average 18-year-old today is about 15 points higher than that of her counterpart 60 years ago.
d) The IQ score of the average 18-year-old today is about 30 points higher than that of her counterpart 60 years ago.
ANS: D, Flynn found increases of about 15 pts. per generation on IQ tests of fluid intelligence.
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