Lecture 9_ Intelligence - Lecture 9 Intelligence...

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Lecture 9: Intelligence Intelligence: the ability to direct one’s thinking, adapt to one’s circumstances and learn from one’s experiences (Gotfredson, 1997) historically defined by how we “measure” it Alfred Binet: developed intelligence tests to identify slow learners to develop remedial programs Aptitude: ability to learn or gain proficiency in an area (apt to be good at something) Achievement: measures the amount of information a person has acquired Mental Age: Based on ability not chronological age However, this formula for IQ was flawed. A child with a mental age of 6 and chronological age of 5 would have the same IQ as a child with a mental age of 12 and chronological age of 10. Newer tests were developed with norms for all age groups based on a standard distribution Stanford-Binet and Wechsler Intelligence Tests are still used today Wechsler Intelligence Tests: WPPSI: (preschool) WISC: (Children) WAIS: (Adults) Results in a Verbal IQ, Performance IQ and Full Scale IQ score Based on norms for the population: 100 is the mean Normal range is 85-115 The Flynn Effect: James Flynn found that from one generation to the next there have been steady gains in IQ scores cross culturally. Hypotheses more time in school, better educated parents, better nutrition, broader exposure through media Wechsler Adult Intelligence Scale most recently revised in 2008
Wechsler’s view of intelligence: “The global capacity of a person to act purposefully, to think rationally and to deal effectively with his/her environment Test Revisions for the WAIS-IV (2008) identifies several scale scores Verbal Comprehension Scale Perceptual Reasoning Scale Working Memory Scale Processing Speed Scale Sample of Verbal Subtests Vocabulary: breadth of concepts, ideas and experiences; + correlated with overall IQ Information: basic fund of information; culturally sensitive Comprehension: awareness of socially appropriate behavior, rules and roles

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