W4L1 - Intelligence Flashcards
What is Intelligence. 4 Ways
- ) Single Trait
- ) Few Basic Abilities
- ) Multiple Processes
- ) A Resolution? (Integrated Model of Intelligence)
Defining: Intelligence as a single trait
individuals possesses an amount of g(general intelligence), common to all intellectual tasks.
Performance on IQ tasks are positively correlated with g. g predicts school achievement, info-processing speed, knowledge not studied…
Defining: Intelligence as few basic abilities
Crystallized intelligence: factual knowledge about the world
Fluid intelligence: ability to think on the spot to solve problems
Defining: Intelligence as Multiple Processes. Contrast this with few basic abilities
Thurstone: Seven primary mental abilities.
While the crystallized/fluid distinction offers simplicity, the seven primary mental abilities model offers greater precision.
Defining: Resolution of defining intelligence
Carroll: Three-stratum theory of intelligence
- ) g
- ) Fluid, Crystallized, General memory and learning, Broad visual perception, Broad auditory perception, Broad retrieval ability, Broad cognitive speediness, Processing speed
- ) Further processes
Measuring Intelligence: 2 Contents/Properties of Intelligence Tests
- Measures based on observable behavior (observe problem solving on tasks that require a variety of types of abilities)
- Intelligence tests measure somewhat different aspects in different ages (greatest success with preschoolers and older children)
Measuring Intelligence: Most widely used for children
Wechsler Intelligence Test for Children (WISC) for Children 6 and up.
2 Main Sections:
Verbal: General knowledge and skill using language
Performance: Spatial and perceptual abilities
Measuring Intelligence: What is IQ and Some properties
A quantitative measure of intelligence relative to others.
IQ scores normal distributed:
68% of scores falling within 1 standard deviation of the mean
95% of scores falling within 2 standard deviations
Measuring Intelligence: Can we measure infant’s intelligence
Lots of test of cognitive development for babies but NONE test intelligence for babies
Measures of infant intelligence help identify babies with problems…
Measuring Intelligence: Gifted Children. What is the sad reality
Exceptional early ability does not always foreshadows later achievement (autistic child nadia and horse)
Measuring Intelligence: Longitudinal. What has been found and what is suggested
Longitudinal studies 5-years and upwards:
- Measurements conducted closer in time are more closely correlated than measures conducted further in time (Reflective of parenting?)
- Scores are more stable at older ages.
Measuring Intelligence: IQ as predictors of outcome
Predictor of academic, economic, and occupational success (Stronger than SES)
Nonetheless, motivation, creativity, health, social skills, are implicated in later success (IQ is not the only predictor)
Genes, Environment, and IQ: Qualities of the Child
Genetic endowment, reactions elicited from other people, and choice of environments.
Genes, Environment, and IQ: Environment (List 2)
1.) Family
- HOME (Home Observation for Measurement of the Environment) - Measure of quality of family environment
- Children’s IQ scores are positively correlated HOME
No causal relation yet
- ) Schooling
- Children who were slightly older but who had a year more schooling > slightly younger children in the grade below them (In IQ test)
- Average IQ and achievement test scores rise during the academic year and drop during the summer.
Genes, Environment, and IQ: Society
Average IQ rise in last 70 years, especially in lower 10%
> Reflects better nutrition, healthcare, access to education