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Copy of CHC Theory

Cattell-Horn-Carroll Theory.
by

Matthew Kilfoyle

on 30 October 2014

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Transcript of Copy of CHC Theory

Three - Stratum Theory
Gf-Gc Theory
Most widely known & recognised wordwide.
General
Crystallised
Intelligence
(cc) photo by theaucitron on Flickr
(cc) photo by theaucitron on Flickr
Fluid intelligence (Gf),
crystallized intelligence (Gc),
visual spatial thinking (Gv),
short term memory (Gsm),
long term storage and retrieval (Glr)
auditory processing (Ga),
cognitive processing speed (Gs),
decision reaction time speed (Gt),
reading and writing (Grw),
quantitative knowledge (Gq).
Stratum III
Stratum I
Stratum II
General Intelligence Factor
An early psychometrician (Spearman) found that schoolchildren's grades across seemingly unrelated subjects were positively related, and proposed that these were a result of the influence of a dominant factor, which he termed g for "general" intelligence or ability.
He developed a model in which all variations in intelligence test scores are explained by two factors: first, a factor specific to an individual mental task: the individual abilities that would make a person more skilled at a specific cognitive task; and second a general factor g that governs performance on all cognitive tasks.
What abilities do Stratum II cover?
76 narrow abilities, each related to a specific Stratum II domain.
Carroll's hierarchical 3-Stratum Theory of cognitive abilities suggests three layers or strata, with each layer attempting to account for the variation in factor loadings at the next lower level. Thus, the three strata are defined as representing narrow, broad, and general cognitive ability.
Cattell-Horn-Carroll
THEORY
The CHC Theory is comprised of
two similar theories:

The Gf-Gc Theory
and the
Three- Stratum Theory.
Fluid intelligence or fluid reasoning is the capacity to think logically and solve problems in novel situations, independent of acquired knowledge. It is the ability to analyze problems, identify patterns, etc. It is necessary for all logical problem solving, especially scientific, mathematical and technical problem solving.
Crystallized intelligence is the ability to use skills, knowledge, and experience. It should not be equated with memory or knowledge, but it does rely on accessing information from long-term memory.
GC
CHC
Theory
Gf - Gc
Theory
Three Stratum
Theory
Stratum
One
Stratum
Two
Stratum
Three
Fluid
Intelligence
Crystallised
Intelligence
General
Fluid
Intelligence
GF
http://www.iapsych.com/chcv2.pdf
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