Module 31

1
Module 31

• Assessing Intelligence

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Alfred Binet

• Paris, 1905
• Looked for mental age
• The goal of understanding intelligence was to
  predict how well children would do in school

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Lewis Terman

• Revised the age standards for children
• Renamed test the Stanford Binet Test (Terman
  was a professor at Stanford)

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Intelligence Quotient

• William Stern derived the IQ from tests like the
  Stanford Binet
• IQ Mental age
• Chronological age
• Multiplied by 100
  

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Modern Tests

• Aptitude tests
• Achievement tests
• WAIS, David Weschler tried to test more than
  just verbal intelligence
• Performance portion verbal

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Standardization

• People that take tests are compared against the
  sample group, standardization group
• Average IQ is 100
• Average range is 85 115
• Koko had an IQ of 85

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Reliability

• How a test yields consistent results
• Try to make an individuals scores correlate
• Test retest or split half scores are 2 ways
  to check reliability

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Validity

• How well a test measures what its supposed to
  measure
• Test based on criterion

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Extremes of Intelligence

• Below average 85 70
• Mental retardation below 70
• Majority of people classified as mentally
  retarded can live on their own, with assistance,
  and they can contribute valuable skills to society

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Breakdown of Mental Retardation

• Mild Retardation
• Low 50s 70s
• Function as an 8 year-old
• Moderate Retardation
• Mid 30s Low 50s
• Function as a preschooler (3-5)

• Severe Retardation
• Low 20s Mid 30s
• Function as a toddler (2-3)
• Profound Retardation
• Below 20-25
• Function as an infant

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Other Extreme of Intelligence

• Gifted children, despite popular beliefs, are
  well adjusted, successful adults
• Gifted programs are supposed to get the same
  money as special services