John L. Horn, Date of Birth, Place of Birth, Date of Death

John L. Horn

American psychologist & scholar

Date of Birth: 07-Sep-1928

Place of Birth: St. Joseph, Missouri, United States

Date of Death: 18-Aug-2006

Profession: psychologist, university teacher

Nationality: United States

Zodiac Sign: Virgo

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About John L. Horn

John Leonard Horn (September 7, 1928 – August 18, 2006) was a scholar, cognitive psychologist and a pioneer in developing theories of multiple intelligence. The structure of mental abilities For his PhD research at the University of Illinois, Horn identified other broad intellectual abilities to supplement fluid reasoning ability (gf) and crystalised ability (gc) postulated by his supervisor Raymond Cattell.
As with Cattell, Horn rejected the existence of an even higher level factor of general intelligence ‘g’ asserted by Spearman (1927).
In Horn (1988) he reported a full list of such broad level abilities: gc (crystalised) gf (fluid) gv (visual) ga (auditory) gq (quantitative) gs (processing speed) TSR (Long-term storage and retrieval) SAR (Short-term acquisition and retrieval) The Cattell-Horn model was, more or less, replicated by Carroll’s (1993) massive analysis by of 450+ intelligence measures, which also yielded a higher order factor similar to Spearman’s ‘g’.
McGrew (2005) reported that in 1999 the test publisher ‘Riverside Publishing met with Horn and Carroll privately in Chapel Hill, North Carolina, to seek a common, more meaningful umbrella term that would recognise the strong structural similarities of their respective theoretical models, yet also recognize their differences.
This sequence of conversations resulted in a verbal agreement that the phrase “Cattell-Horn-Carroll theory of cognitive abilities” made significant practical sense, and appropriately recognized the historical order of scholarly contribution of the three primary contributors.’ The Cattell-Horn- Carroll (CHC) theory is the basis for many modern IQ tests.
Horn's parallel analysis, a method for determining the number of factors to keep in an exploratory factor analysis, is also named after him. References J.
B.
Carroll (1993), Human cognitive abilities: A survey of factor-analytic studies, Cambridge University Press, New York, NY, USA. Horn, J.
L.
(1988).
Thinking about human abilities.
In J.
R.
Nesselroade & R.
B.
Cattell (Eds.), Handbook of multivariate experimental psychology.
New York: Academic Press, (pp.
645-685) McGrew, K.
S.
(2005).
The Cattell-Horn-Carroll Theory of Cognitive Abilities.
In D.
P.
Flanagan & P.
L.
Harrison (Eds.).
(2012).
Contemporary intellectual assessment: Theories, tests, and issues.
(pp.
151–179).
New York: Guilford Press. Spearman, C.
(1927).
The abilities of man.
London: Macmillan

John L. Horn, Date of Birth, Place of Birth, Date of Death

About John L. Horn

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