Module 31 Assessing Intelligence

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

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

Intelligence Quotient William Stern derived the IQ from tests like the Stanford – Binet IQ= Mental age Chronological age Multiplied by 100

Modern Tests Aptitude tests Achievement tests WAIS, David Weschler: tried to test more than just verbal intelligence Performance portion + verbal

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

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

Validity How well a test measures what it’s supposed to measure Test based on criterion

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

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 Function as an infant 11/26/2015Free Template from 10

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