Intelligence
Knowledge
Effectief denken en beredeneren
Adaptief omgaan met je omgeving
First attempt to measure intelligence
Galton
Alfred Binet
Binet Simon test
Taks of reasoning & problem solving
Stanford-Binet Intelligence scales
Wechsler Scale
IQ
Ratio of mental age to chronological age multiplied by 100
- Now based on standardization, median is 100
Flynn effect
Gains in mean IQ for world regions
Factor analysis
Statistical method to identify clusters of variables that correlate highly with each other
Charles Spearman
-> factor analysis
Invented the G-Factor
G factor
- Tasks for the Stanford binet correlate postively
Thurston
Critises Spearman
Catell & Horn
Combined model for intelligence
- General intelligence contains- > fluid intelligence and crystallized intelligence
Crystallized intelligence
Keeps developing Fluid intelligence (prefrontal cortex) has a peak around age 20 and that slightly decreases
Carroll´s three stratum theory
General intelligence is influenced by fluid and crystallized intelligence and the 7 abilities
IQ is an important predictor is
What influences intelligence
Genes and environment
As the child grow older the genes play a more important role
Active effects
The genotype of a child influences the environment a child chooses
Passive effects
The overlap of the genotype of the parents and the child’s genotype influences the environment the child grows up in.
Evocative effects
Behavior of the child will influence the reaction of others to the child
Biological factors intelligence
Prenatal environment intelligence
Schooling effect on intelligence
Poverty and intelligence
Consistent negative effect of poverty on intelligence and IQ scores