Bernstein Chapter 10 Cognitive Abilities page 365 What is intelligence? How good are tests designed to measure intelligence? Can test scores be compared without considering the social and academic background of the people who took the tests? How are intelligence tests created? What do intelligence tests measure? How can intelligence tests be evaluated? General Intelligence Tests – measure: 1. 2. 3. 4. Remembering Reasoning Verbal Abilities Mathematic Abilities Cognitive abilities- deal with capacity to: 1. Reason 2. Remember 3. Understand 4. Solve problems 5. Make decisions We draw conclusions about people’s intelligence from what can be observed and measured Robert Sternberg Deferent view of Intelligence Said intelligence has 3 main characteristics Created the Triarchic Theory of Intelligence Argued that there are 3 types of Intelligence 1. Analytic- Traditional intelligence Tests, being able to learn, remember, reason, information processing skills 2. Creative- using skills to solve problems, Skills to solve problems 3. Practical- Being able to alter or adapt to new and changing environment Suggested that tests should measure these components of intelligence to make a more accurate assessment Alfred Binet, 1904 France Education Researcher Tried to measure reasoning, thinking, problem solving, and found all depended on intelligence Tasks that would highlight differences in children’s ability to do these things Age based tasks “6 year old item” types of questions that most kids should be able to answer Test measured a child’s mental level (aka) Mental Age He found by determining the age level of most advanced items a child could consistently answer correctly then he made inferences about the child in reference to most children of that age… “Children whose mental age equaled their actual chronological age were considered to be regular level intelligence.” (p. 367) Louis Terman of Stanford (p. 368) Developed the Stanford-Binet (1918) Intelligence test for adults Mental age was decided by chronological age and the result multiplied by 100 Identified by Intelligence Quotient Chronological age and mental age are equal then the IQ is 100 Example 10year old with mental age of 12 = 10/12x100= 120 IQ New Standford Binet (SB5) Still age based IQ Measures: Fluid Reasoning Knowledge Quantitative Reasoning Working Memory Visual + Spatial Processing (Verbal and Non-verbal) Wechsler, David (1930) (WAIS) Wechsler Adult Intelligence Scale Tested 1. Verbal 2. Non-verbal Success was not measured on formal school WAIS IV newest version gives IQ based on Verbal and Non-verbal Verbal Tasks Remembering a series of digits Solving arithmetic Defining vocabulary Understanding and answering general knowledge questions Performance Tasks Understanding relationships between objects Manipulation of blocks, mazes, pictures/stories, completing unfinished pictures Other Tests: Aptitude Tests: Measure readiness to learn certain things Or preform certain tasks Examples: SAT, ACT, GRE Achievement Tests: “Measures what a person has learned in a particular area” Measuring the Quality of Tests Tests are standardized procedure, observing and describing behavior Objective in nature to remove biases Score= a performance summary Norms= the frequency of particular scores related to other people and groups Reliability= Replication, identified as a Correlation Coefficient Validity= test measures what it is supposed to measure Evaluating Tests: Are IQ Tests Fair There are many variables that can impact test performance English language Vocabulary and experiences Culture Specific Many tests reflect the attitudes and experiences of the authors example middle class culture Context dependent questions Biased questions Intelligence is a developed ability… asking questions helps Rewards for progress Encouragement Expectations (aid) (Rosenthal and Jacobsen study… teacher expectations) Twin Studies- tell us about nature But also nurture makes a big difference Psychometrics is the field of study concerned with the theory and technique of psychological measurement, which includes the measurement of knowledge, abilities, attitudes, personality traits, and educational measurement. The field is primarily concerned with the construction and validation of measurement instruments such as questionnaires, tests, and personality assessments. Cattell + Spearman Found 2 types of intelligence Fluid Intelligence- basic power of reasoning and problem solving Crystallized Intelligence- specific knowledge Howard Gardner and Multiple Intelligence Found some insight into how people learn He identified different skills that make up intelligence Said they are complimentary and interact Some intelligences are developed further than others 1. 2. 3. 4. Linguistic- vocabulary and reading comprehension Logical/mathematics- reasoning Spatial- relationships Music- rhythm, tempo, sound 5. 6. 7. 8. Kinesthetic- Body Intrapersonal- knowing yourself Interpersonal- understanding and interacting others Naturalistic- finding patterns in nature Gardner said traditional intelligence tests only look at the first 3.