The Wechsler Adult Intelligence Scale is an IQ test. Scores on the
WAIS for the 20 30 age group are approximately Normally distributed with
the mean 110 and standard deviation 15. Scores for the 60 64 age group
are approximately Normally distributed with mean 90 and standard
deviation 15. Sarah who is 30 scores 130 on the WAIS. Her mother is 60
takes the test and scores 115. A. Express both scores as standard scores
that show where each women stands within her age group. B. Who scored
higher relative to her age group. Saran or her mother? Who has the
higher absolute level of the variable measured by the test.
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