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Core Studies: Individual Differences Area

Gould (1982) bias in IQ testing: Yerkes's conclusions and how the tests were given

  • 2 things to know
  • Component 02

Overview

Recall questions on why the Army Beta was not culture-free, Yerkes's conclusions about white recruits, immigrants and black recruits, length of residence and test scores, and the failures in how and where the tests were administered.

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Answer each one before you reveal it.

Your recallNot started
Who and when

What average mental age did Yerkes report for black recruits?

Key term

Give two problems with the conditions in which the tests were taken.

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    Why was the Beta not the culture-free alternative it claimed to be?

    Model answer

    It still required the use of a pencil, numerals and written symbols, which many recruits had never handled before.

  2. 2

    What did Yerkes conclude about the average white American recruit?

    Model answer

    That his mental age was about 13, only just above the level then labelled 'moron'.

  3. 3

    What did Yerkes claim about European immigrants?

    Model answer

    That intelligence could be ranked by country of origin, with people from northern and western Europe scoring above those from southern and eastern Europe.

  4. 4

    What average mental age did Yerkes report for black recruits?

    Model answer

    An average of about 10.4 years.

  5. 5

    How did Yerkes explain the link between length of residence in America and test score?

    Model answer

    He claimed that the more able stock had emigrated earlier, rather than accepting that longer residence simply meant more familiarity with the language and culture.

  6. 6

    What two failures occurred in how the tests were administered?

    Model answer

    Men were frequently given the Alpha when they should have taken the Beta, and those who failed the Alpha were often never recalled for the Beta they were entitled to.

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