PSYC 111 Lecture Notes - Lecture 8: David Wechsler, Lewis Terman, Percentile Rank
Document Summary
Intelligence: david wechsler: "intelligence is the global ability of the individual to act purposely, to think rationally, and to deal effectively with the environment" 100 to yield a mental quotient: later called the intelligence quotient (iq, example: if a child had a ma od 10 and a ca of 8, the child"s iq would be 125 (10 divided by 8. Measuring intelligence- heredity and environment as determinants: measure of intelligence have important social and political implications, heritability ratio is an estimate of the proportion of trait that is determined by variations in genetic inheritance. Limitations: group statistic, may vary among groups, based on white, middle-class subjects. Why do minorities score lower on intelligence tests: arthur jensen, richard herrnstein and charles murray, the bell curve. Social scientists today believe the minorities have lower iq"s because of environmental factors. Measuring intelligence- theories of intelligence: charles spearman"s "g"
