AP Psych Chaper 11 - Chapter 11 Vocab Wechsler Adult...

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Chapter 11 VocabWechsler Adult Intelligence ScaleWAIS; most widely used intelligence test; contains verbal and performance (nonverbal) subtestsIntelligence QuotientDefined originally as the ratio of mental age (ma) to chronological age (ca) multiplied by 100 (thus, IQ = ma/ca x 100); on contemporary intelligence tests, the average performance for a given age is assigned a score of 100Stanford-BinetWidely used American revision (by Terman at Stanford University) of Binet's original intelligence testAptitude TestTest designed to predict a person's future performance; aptitude is the capacity to learnReliabilityThe extent to which a test yields consistent results, as assessed by the consistency of scores on two halves of the tests, on alternate forms of the test, or on retestingAchievement TestA test designed to assess what a person has learnedMental AgeA measure of intelligence test performance devised by Binet; the chronological age that most typically corresponds to a given level of performance; thus, a child who does as well as the average 8 year old is said to have a mental age of 8StandardizationDefining meaningful scores by comparison with the performance of a pretested standardization groupNormal CurveThe symmetrical bell shaped urge that describes the distribution of many physical and psychological attributes; most scores fall near the average, and fewer and fewer scores lie near the extremesPredictive Validity
The success with which a test predicts the behavior it is designed to predict; it is assessed by computing the correlation between test scores and the criterion behavior (also called criterion-related validity)Mental RetardationA condition of limited mental ability, indicated by an intelligence score of 70 or below and difficulty in adapting to the demands of life varies from mild to profoundIntelligenceMental quality consisting of the ability to learn from experience, solve problems, and use knowledge to adapt to new situationsFactor AnalysisA statistical procedure that identifies clusters of related items (called factors) on a test; used to identify different dimensions of performance that underlie one's total scoreGeneral IntelligenceA general intelligence factor that according to Spearman and others underlies specific mental abilities and is therefore measured by every task on an intelligence testCreativity

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