PSY 2105 Lecture Notes - Lecture 10: Intelligence Quotient, Mental Calculation, Fluid And Crystallized Intelligence

• School: University of Ottawa
• Department: Psychology
• Course: PSY 2105
• Professor: Brenda Baird

Document Summary

Iq tests: psychometric approach (using standardized tests to identify differences in intelligence between people. ) History: binet approach: 1905 binet & simon, goal to identify individual differences in intelligence and then place kids that couldn"t handle normal school in a special class. Based on comparing performance of different groups of children. Used concept of mental age to indicate performance: wechsler test: 2 tests for different age groups, focuses on academically relevant skills. Inaccurate because use of sensorimotor skills, and cannot predict later childhood iq. Evaluating iq tests: reliability: consistency or repeatability of a measuring instrument. Short-term consistency since child"s iq changes over life: validity: accuracy a test instrument has in measuring what it claims it does. Validity=how validity is determined, whether iq can predict different criterion such as school performance (correlate 0. 5 to 0. 6 with school scores. ) (correlates 0. 5 with cognitive performance and and learning. ) Psychometric approach focuses on individual differences and if differences show patterns that can explain organization.