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ability to acquire knowledge, to think and reason effectively, and to deal adaptively with the environment |
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studied fingerprinting, meteorology, use of prayer to control weather, family trees, hereditary genius
believed that some people had "inherited mental constitutions"
created his own measures of mental abilities |
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commissioned to develop a procedure for identifying "special needs" children
his test emphasized verbal content, rather than the sensory and perceptual skills favored by Galton
introduced concept of "mental age" |
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Binet's test, revised and translated by Lewis Terman of Stanford University |
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(mental age/chronological age) x 100
100 is regarded as average |
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expresses the individual's test performance in relation to an appropriate comparison group
100 is regarded as average |
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first group-administered intelligence tests
developed by Arthur Otis to screen military personnel |
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developed different tests for different age groups
WAIS, WISC, WPPSI
include verbal and non-verbal material |
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measure cognitive abilities |
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developed tests to eliminate racial discrimination based on intelligence |
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studies effects of "stereotype threat"-- being judged based on age, sex, race, etc. |
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most featured in school and IQ tests |
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knowing about the world close to you |
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understanding of own body |
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interpersonal intelligence |
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understanding relationships |
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intrapersonal intelligence |
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understanding of one's own emotional and mental self |
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studied limits of testing and practical intelligence
tested ability of subjects to map routes to locations, found no correlation between spatial and... |
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Cattell and Horn; abilities needed in order to solve new problems; declines in adulthood; "cognitive horsepower"; primarily genetic |
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Carroll; general intelligence contributes to all other intelligences; items closest to g are more closely related
[image]
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Gardner
Linguistic Mathematical Spatial Musical Kinetic-body Interpersonal Intrapersonal Naturalistic Existential |
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Salovey and Mayer;
Perceiving Using Managing Understanding
better at detecting deception better at manipulating people |
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individual differences in perceptual and cognitive processing of test items
borrows heavily from laboratory research on memory |
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statistical analysis of correlations between... |
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Six tests: vocabulary, analogies, synonyms, long devision, fractions, square roots
shaded areas represent two clusters (factors) of intelligence tests; all test correlations are positive and substantial in size |
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influences performance on all mental ability tasks |
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influences performance on specific tasks |
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Cattell and Horn; information you know; continues to increase through adulthood |
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Neural speed and intelligence |
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Arthur Jensen; recorded time for brain to react to visual stimuli; subjects with faster conduction speed had higher scores on an intelligence test |
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Guilford's structure of intellect model |
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Sternberg; analytical, practical (adaptation to new environments), creative (ability to deal with novelty), metacomponents ( |
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unwritten rules of the workplace |
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Individual test
Used for diagnoses
not practical for quick, large-scale assessment |
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Individual test
Used for diagnoses
Verbal subtests: vocab, similarity, arithmetic, digit span, info, comprehension, letter-number sequencing Performance subtests: picture completion, digit symbol-coding, block design, matrix reasoning, picture arrangement, symbol search, object assembly |
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group test not used to diagnoses, but for placement
alpha: for literate people beta: for illiterate or foreign people |
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group test not used to diagnoses, but for placement
schools are starting to dispose of this as a form of evaluation |
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Cognitive Abilities Test (CogAT) |
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group test not used to diagnoses, but for placement |
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stop a progressively harder test after a certain number of wrong answers |
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mild: low 50s-70s moderate: mid 30s - 50s severe: low 20s-30s profound: below 20 or 25 |
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range, standard deviation |
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r
-1 to +1
+1 means perfect association between two variables -1 means a perfect negative correlation |
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psychometric standards
reproducibility or consistency of scores |
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appropriateness of inferences from scores |
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administration, scoring, interpretation |
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intelligence tests correlate with high school grades |
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SAT scores predict college grades |
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intelligence correlates with the level of socioeconomic status that people attain |
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a "rising curve" phenomenon, suggesting that much of the world's population is scoring progressively higher on IQ tests
IQ increase of 28 points since 1910 in the U.S.; similar in Great Britain
may be due to nutrition, more complex learning environments, or advances in technology |
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Raven's Progressive Matrices Test |
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visual "complete the series" problems
designed to be free of cultural bias; however it is not "culture free" |
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Importance of intelligence |
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life outcome differences as a function of a 6 point IQ difference |
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the proportion of within-group differences in a characteristic that are attributable to genetic factors; ratio of genetic to total variability
variability among socioeconomic standards
H = diff g/diff total |
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environmental features experienced in common by two or more individuals in a setting |
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environmental features experienced uniquely by an individual in a setting |
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how the environment influences phenotypic expression of genetic factors
positive environment increases measured IQ, and vice versa |
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genes' influence on the environment |
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genotype characteristics > influence parent-produced environment, responses evoked from others, and self-selection of compatible environments > environment in which the person develops |
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not supported by evidence |
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knowledge and skill acquisition |
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children of lower classes have a deficit in this
naming the letters of the alphabet, naming colors, etc. |
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Sternberg
1. Encoding 2. Rotation (locus of gender differences; sensitive to training; argues against a biological basis for differences) 3. Comparison 4. Response |
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adaptive behavior deficits |
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mental retardation inability to communicate and get along with people, carry out everyday tasks, etc. |
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IQ < 70 (-2 SDs) Adaptive behavior deficits Onset prior to age 18 |
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can calculate pi to 10,000 decimal places
fucking AMAZING
not much higher IQ than average |
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