Intelligence and Achievement

AP Psychology· difficulty 3/5

The original IQ score (Stern's formula) was

  • A

    Number of years in school

  • B

    Simple addition of correct answers

  • C

    (Mental age / chronological age) × 100

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  • D

    Time taken on a test

Explanation

Modern IQ tests use deviation IQ scores (mean = 100, SD = 15) instead.

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