Layman definition of intelligence
problem-solving ability, social competence
Francis Galton
Alfred Binet
David Wechsler
Jean Piaget
Cognitive reorganization in a mental structure; organized action or mental structure that when applied, leads to knowing, understanding
Schema
Accdg. to Piaget, learning occurs through 2 basic mental operations
Assimilation -actively organizing NEW info so that it fits with what already is perceived and thought
Accommodation -changing what is already perceived or thought so that it fits with the new info
Causes the individual to discover new info, perceptions, communication skills
Disequilibrium
Refers to the complex concept by which heredity and environment are presumed to interact and influence the development of one’s intelligence
Interactionism (Binet, Wechsler, Piaget)
Factor-analytic theorists of intelligence
Spearman Guilford Thurstone Cattell Horn Carroll
Created the 2 factor theory of intelligence (general and specific abilities)
Charles Spearman
General ability (g)
Specific ability (s)
performance on just one kind of mental test
Group factors
Joy Paul Guilford
Louis Leon Thurstone
Conceived of intelligence as being composed of 7 Primary abilities, but was convinced it as difficult if not impossible to develop an intelligence test that did not tap ‘g’
Howard Gardner
Raymond Cattell
John Horn
-modified Cattell’s work
-2 abilities:
Vulnerable abilities- decline with age and tend not to return to preinjury levels following brain damage
Maintained abilities -tend not to decline with age and may return to preinjury levels following brain damage
John Carroll
-developed the Three Stratum Theory of Intelligence
3rd- “g” or general intelligence
2nd- composed of 8 abilities and processes
1st- level and speed factors each different depending on the 2nd stratum to which they are linked
Hierarchical model
All of the abilities listed in a stratum are subsumed(a subordinate or component) by or incorporated in the strata above
CHC model (Cattell-Horn-Carroll)
Philip Vernon
Edward Lee Thorndike