lecture 1 Flashcards
what is the Flynn effect?
environmental effect on cognitive abilities- the gain in IQ for world regions across years
who developed the index of correlation in 1888?
Galton
who introduced factor analysis in 1904?
Spearman
who developed the idea of general intelligence?
Spearman in 1904
Heyman found out what percentage of impulsivity is hereditary and in what year?
43-48%
1972
In the mid 20th century what did Cattell distinguish
distinguished surface traits and source traits/ and dynamic ability and stable temperaments
Cattell developed two models. What were they?
The fluid- crystallised g model of intelligence.
16 personality factor industry.
Who developed the PEN model?
Eysenck
shown through family, twin, and adoption studies, which percentage of Individual differences is hereditary?
20-60%
