Module 31 Assessing Intelligence
Mar 26, 2015
Module 31
Assessing Intelligence
Alfred Binet
• Paris, 1905
• Looked for mental age
• The goal: prediction of success 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 ageChronological age
Multiplied by 100
Modern Tests
• Aptitude tests
• Achievement tests
• WAIS, David Weschler: tried to test more than just verbal intelligence
• Performance + verbal
Standardization
• People that take tests are compared against the sample group, “standardization group”
• Average IQ is 100
• Average range is 85 – 115
Reliability
• Consistency
• 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 criteria
• Culture-fair tests
Extremes of Intelligence
• Below average 85 – 70
• Mental retardation below 70
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
04/10/23 Free Template from www.brainybetty.com
10
Other Extreme of Intelligence
• Gifted children mostly OK
• Gifted programs usually aren’t for just gifted kids