Psychology 1000 Lecture Notes - Lecture 28: Criterion Validity

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Mike Atkinson

Document Summary

What is intelligence: a host of abilities (memory, creativity, etc. , what a test measures, but tests can be misleading - unschooled people in remote villages cannot solve syllogisms. Suggests that preliterate people do not or cannot use logical analysis. Standardize test: concept of mental age introduced, get age norms (mean performance, assign new test score to mental age group according to norms. If a child performs at level of average 5 year old, ma = 5: terman (& stern, adapts binet scale for use in usa while at stanford, stanford-binet widely used standard test. Iq = ma/ca * 100: designed for children and not appropriate for adults, wais (wechsler adult intelligence scale) or wisc for kids, wais-iv has 10 subscales with both verbal and performance measures, use deviation iq (z-score) Validity: does the test measure what it is supposed to measure, r with achievement, range is 0. 3 to 0. 7.