Question
Given that IQ tests are not perfectly reliable, why would it be irresponsible to tell someone his or her score on an IQ test?
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IQ tests are not perfectly reliable: IQ tests are designed to measure a person's intelligence quotient, but they are not infallible. There can be various factors that may affect the accuracy of the test results, such as test conditions, cultural biases, or even Show more…
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Some IQ tests are standardized to a Normal model, with a mean of 100 and a standard deviation of 16 . a) Draw the model for these IQ scores. Clearly label it, showing what the $68-95-99.7$ Rule predicts. b) In what interval would you expect the central $95 \%$ of IQ scores to be found? c) About what percent of people should have IQ scores above $116 ?$ d) About what percent of people should have IQ scores between 68 and $84 ?$ e) About what percent of people should have IQ scores above $132 ?$
IQ Scores According to the Stanford-Binet IQ test, a normal IQ score is 100 . It can be shown that anyone with an IQ $x$ that satisfies the inequality $\left|\frac{x-100}{15}\right|>1.96$ has an unusual IQ score. Determine the IQ scores that would be considered unusual.
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