IQ Scores Based on the Wechsler Adult Intelligence Scale (WAIS)

question 40

Multiple Choice

IQ scores based on the Wechsler Adult Intelligence Scale (WAIS) are assumed to be normally distributed with a mean of 100 and a standard deviation of 15. What is the z-score for an IQ of 125?

• A) z = -1.25
• B) z = 1.25
• C) z = 1.67
• D) z = 5.05

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