Which statement is incorrect? IQ predicts school achievement. IQ predicts job performance. IQ predicts life expectancy None of the above.
The statement "IQ predicts life expectancy" is incorrect.
Explanation:
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IQ predicts school achievement: This statement is correct. The references 3, 5, and 8 provide evidence that there is a well-established association between intelligence (IQ) and academic achievement. IQ is one of the determinants of school performance and influences academic achievement.
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IQ predicts job performance: This statement is generally considered correct, although the relationship may be more complex in real-life settings. While IQ is not the only factor that predicts job performance, it has been found to be a significant predictor in many studies. However, other factors such as emotional intelligence, personality traits, and specific job-related skills also play important roles.
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IQ predicts life expectancy: This statement is incorrect. The references provided do not mention any relationship between IQ and life expectancy. While IQ is related to various outcomes such as academic and job performance, there is no clear evidence to suggest that it directly predicts life expectancy. Factors such as genetics, lifestyle choices, and access to healthcare have a much stronger influence on life expectancy.
So, the correct answer is "IQ predicts life expectancy" as it is the statement that is not supported by the provided references. The other statements have some level of evidence to support them, although the relationship between IQ and job performance is more complex and involves other factors as well.