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chapter 7 . I. What is intelligence?. chapter 7 . Defining intelligence. Intelligence The ability to profit from experience, acquire knowledge, think abstractly, act purposefully, or adapt to changes in the environment [p238]. chapter 7 . Psychometrics.
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chapter 7 I. What is intelligence?
chapter 7 Defining intelligence Intelligence The ability to profit from experience, acquire knowledge, think abstractly, act purposefully, or adapt to changes in the environment [p238]
chapter 7 Psychometrics • The traditional approach to intelligence that measures mental abilities, traits, and processes [p238] Aptitude testsattempt to measure potential for success in a given area Achievement testsmeasure the skills and knowledge one already has
Sources of bias • Validity: The extent to which a test measures or predicts what it is supposed to • Cultural bias:Favoring one cultural group over another
chapter 7 Can IQ tests be culture free? [p240-241] Culture-fair tests attempt to be culturally non-biased Culture affects a person’s. . . Attitude toward exams Comfort in settings required for testing Motivation Rapport with test provider Competitiveness Ease of independent problem solving
chapter 7 Expectations and IQ Scores are affected by expectations for performance Expectations are shaped by stereotypes Stereotype threat Burden of doubt one feels about his/her performance due to negative stereotypes about his/her group [p241]
chapter 7 Beliefs about intelligence [p249] Asian parents, teachers, and students are more likely to believe that math ability comes from studying. Americans are more likely to believe that math ability is innate. • American parents tend to have lower academic standards for kids. • American children tend to value education less.
Sir Francis Galton • Hand Dynamometer
chapter 7 The invention of intelligence tests Alfred Binet: First intelligence test (1904) measured memory, vocabulary, and perceptual discrimination. Mental Age (MA): an individual’s level of mental development relative to others [p239]
William Stern and IQ (1912) Mental age was divided by chronological age and multiplied by 100 to get an intelligence quotient. [p239] Now IQ scores are derived from norms provided for standardized intelligence tests.
chapter 7 Current Interpretation of IQ scores [p239] IQ scores distributed normally Bell-shaped curve Very high and very low scores are rare. 68% of people have IQ scores between 85 and 115. 99.7% between 55 and 145
Extremes of intelligence • Mental retardation: IQ below 70 and difficulty adapting to everyday life • Giftedness: IQ of 120 or higher and/or superior talent in one or more areas
Alfred Binet (1904) • The French school board used the results of the test to identify weak areas and offer extra help • The US later used the test to categorize people in school and in the military
Arthur Jensen (1969) • Heredity influences intelligence by 80% • People should breed for intelligence
Repository for germinal choice (1980-1999) • AKA: Nobel prize sperm bank
Environment can raise IQ • Programs like Head Start • Motivation level determines success
Environmental factors associated with low IQ [p247] • Poor prenatal care • Malnutrition • Exposure to toxins • Stressful family circumstances
The Environment and IQ • Statistics indicate that scores on IQ tests have been increasing rapidly worldwide, perhaps due to an increase in: • availability of information • exposure to information • access to education
IQ test scores… • …are currently the best indicator we have for how someone will perform in school
Limitations of Intelligence Tests • Their effectiveness depends on the skill of the test giver • They are best used in conjunction with other information about the individual
Limitations of Intelligence Tests • Scores can lead to: • Stereotyping • Labeling • Expectations of ability
Creativity • The ability to produce novel and valuable ideas • Creative productivity depends on many factors: • Level of motivation • Personality • Intelligence • Training • Mentoring • Good luck
chapter 7 Emotional intelligence The ability to perceive, express, understand, and regulate emotions. [p243] Appears to be biologically based
chapter 7 Howard Gardner’s multiple intelligences theory • Body smarts • Space smarts • Music smarts • Word smarts • Number smarts • Self smarts • People smarts • Nature smarts
Each of Howard Gardner’s types of intelligences… • …relies on cognitive skills that can be destroyed by brain damage • …can show up in gifted people or in people with mental retardation
chapter 7 Sternberg’s Triarchic Theory [pp242-243] Componential (analytic) Comparing, analyzing, and evaluating This type of process correlates best with IQ Experiential (creative) Inventing solution to new problems Transfer skills to new situations Contextual (practical) Applying the things you know to everyday contexts
Evaluating the multiple intelligences approaches • They encourage us to think more broadly about what intelligence is • They have motivated educators to provide instruction in different domains • They may not address all areas of intelligence • They lack empirical evidence