01:830:101 Lecture Notes - Lecture 9: Intellectual Disability, Mental Rotation, Construct Validity

• School: Rutgers University
• Department: Psychology
• Course: 01:830:101
• Professor: Sean Stevens

Document Summary

Reliability of a test: can take test multiple times-- do you get roughly the same score, calculating correlations between scores of time 1 and time 2, can"t get negative. 1. twin grew up in different parts: same iq test, suggest that intelligence is heritable not, does not exist in a vacuum, research findings can have impact on society environmental based. Terman and the stanford-binet: alfred binet, how old we actually are + different mental age, iq= mental age/chronological age x 100. Wechsler"s innovations: wechsler adult intelligence scale (wais, also one for children, he introduced 2 important concepts, brought nonverbal reasoning in (1) spacial intelligence, mental rotation of objects (2) mechanical intelligence, wechsler first one to standardize scores of iq. Debate about the structure of intelligence: spearman"s g, synthesis of 2 ideas. C: s1, s2, s3 thesis, antithesis, synthesis deviation iq score gradual stabilization of iq scores. Ix: mean correlation between general mental ability and job performance.