GenPsych - Ch09 Intelligence

GenPsych - Ch09 Intelligence - Lecture Outline Intelligence...

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Lecture Outline Intelligence What is intelligence? History of intelligence testing. Approaches to intelligence. Issues in intelligence testing. What is Intelligence? Definitions of intelligence differ, and there is ongoing controversy and dissatisfaction with the tests that are in current use. Intelligence tests were developed before many of the discoveries concerning memory and cognition that we have studied in this course. Conceptions of intelligence usually include: The ability to learn complex material and solve problems (without taking “too long” to do so). Intelligence Testing: History Alfred Binet and Theodore Simon: Developed first intelligence test (1904-1911). The purpose of the test was to identify students who would not do well in standard French schools. Many children at each age were tested. Mental Age Binet and Simon devised the “mental age” concept”: Calculate the average test performance for a large number of children at each age. Let’s call this group the “standard comparison” group. For any child taking the test and achieving a given score, his or her mental age (MA) is the average age at which children in the standard comparison group achieved that score. The Stanford-Binet Test in the U.S. Lewis Terman (at Stanford University): Created an American version of the Binet-Simon Test. It was called the Stanford-Binet test, and it was used for people from age 2 through adulthood.
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IQ (Intelligence Quotient) In order to compare across age groups, the IQ (Intelligence Quotient) was developed: mental age IQ = ---------------------- X 100 chronological age Thus, for children of any age, the average score is 100. Limitations of the IQ Formula The IQ formula cannot compare adults across broad age ranges. It would be useful to compare all adults within large age ranges. For example:
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GenPsych - Ch09 Intelligence - Lecture Outline Intelligence...

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