Rusty charges that IQ tests are biased against redheaded people. What evidence (if true) would most decisively support this charge?
a. On average, redheaded people get lower scores than other people.
b. Redheaded people with an IQ of 100 do worse in school than others with the same score.
c. Redheaded people with an IQ of 100 do better in school than others with the same score.
d. Redheaded people with an IQ of 100 do about the same as others with the same score.
c
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