PSY 121 Lecture 9: Psych 121 – chapter 9
Document Summary
Hypothetical construct used to explain observed differences in behavior learn from experience adapt to change acquire knowledge think abstractly act purposefully. Original goal: to objectively identify children who needed remedial help. 1904: two psycholotists, binet and simon, hired by french ministry of education intelligence quotient. Abandoned in favor of scoring based on normal distribution, now approximate normal curve. Binet-simon test measured abstract reasoning skills, verbal skills, etc. Good predictive validity w/ regard to school performance. 1916: lewis terman (stanford) revised test, adapted for na population mid-1900s: david wechsler created wechsler adult intelligence scale (wais) Percentile score: % of population that has score lower than your score. Deviation iq sscore: how many standard deviations away from mean you are (+/-1. Superiority bias: most people belive they are slightly more intelligent than average. Memory factor analysis: statistical method for analyzing intercorrelations among various items g factor? (g=general) General intellectual ability underlying all specific abilities and talents.
