Intelligence & academic ability: L7 Flashcards
Intelligence as a single trait:
- performance on IQ tasks are…
- hypothesis… what is g?
- what does g correlate with? (4)
- positively correlated
- individuals possess an amount of ‘g’ (general intelligence), common to all intellectual tasks
- school achievement
- information-processing speed
- speed of neural transmission in the brain
- knowledge of subjects not studied in school
- school achievement
Two types of intelligence + definition
- crystallised = factual knowledge
- fluid = problem solve
-> simplistic distinction
Thurstone: intelligence involves how many primary mental abilities?
- 7
- this model offers greater precision than crystallised/fluid distinction
Carroll: three-stratum theory of intelligence
- how many?
- 8:
1. fluid
2. crystallised
3. general memory + learning
4. visual perception
5. auditory perception
6. retrieval ability
7. cognitive speediness
8. processing speed
contents of intelligence tests:
- what are measures based on?
- what do they measure?
- greatest success with what age?
- observable behaviour
- different aspects in different ages, problem solving that requires varied abilities
- preschoolers and older children
WISC
- mostly used on what ages
- 2 main sections
- 6+
- verbal: general knowledge and skill using language
- performance: spatial and perceptual abilities
- verbal: general knowledge and skill using language
intelligence quotient (IQ) is what kind of measure of intelligence?
- quantitative measure of intelligence relative to others
IQ scores
1. a normal distribution is
- 68% of scores falling within 1 SD of the mean
2. 95% of scores falling within 2 SD
Longitudinal assessment
- ages
- what types of measurements are conducted? & why
- scores more stable when?
- 5+
- close in time = more closely correlated
- scores more stable at older ages
what can influence changes in IQ?
parental practices
IQ is a predictor of what? (2)
BUT
- academic, economic and occupational success
- more closely related to later success than socioeconomic status
- BUT motivation, creativity, health, social skills are implicated in later success
IQ: Family influence
1. what’s HOME?
-> however…
- children’s IQ scores are positively correlated with the quality of their family environment as measured by HOME
- > causal relations between HOME scores and IQ scores have not yet been established
HOME
- examples of categories (6)
- emotional and verbal responsivity of mother
- avoidance of restriction and punishment
- organisation of physical and temporal environment
- provision of appropriate play materials
- maternal involvement with child
- variety of daily stimulation
IQ: school influence
- what do jumps between grade indicate?
School exerts a positive effect on intelligence test performance beyond age
IQ: influence of society
- what 2 systems influence intellectual development?
- average IQ scores have what in the past how many years?
- economic and social systems
- risen, 70 years (especially in the lower 10% of the distribution)