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MMLU / The function of the correction for attenuation is to

Problem

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question

The function of the correction for attenuation is to

choices

  1. provide an estimate of the predictive validity of a test-thar is independent of chance factors in any specific validation sample
  2. show how adding or subtracting items affects the reliability of a test
  3. estimate the correlation between wo variables if one or both could be measured without error
  4. correct an obtained correlation coefficient for restriction of range in either variable

subject

professional_psychology

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Source and history

Official source

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