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| Research article summary (published 29 Apr 2009): |
Measuring fluid intelligence on a ratio scale: evidence from nonverbal classification problems and information entropy.
Full Abstract
Drawing on the g factor and information theory literatures, the relationship between the four subtests of the Culture-Fair Intelligence Test (CFIT) and the entropy of the Ruiz Absolute Scale of Complexity Management (R-ASCM) was investigated. In results based on data collected from 186 university students, the entropy of the R-ASCM mostly loads the first principal component extracted from the CFIT subtests and shows a corresponding strong relationship with the item difficulty of the R-ASCM. Because entropy is a ratio scale of complexity--with a true zero and units called bits--these findings suggest that entropy is the right vehicle for measuring the information contained in nonverbal intelligence tests.
Author information
Author/s: Ruiz, Philippe E (PE);
Affiliation: ESC Lille Graduate School-LSMRC, Euralille, France. p.ruiz(-atsign-)esc-lille.fr
Journal and publication information
Publication Type: Journal Article
Journal: Behavior research methods (Behav Res Methods), published in United States. (Language: eng)
Reference: 2009-May; vol 41 (issue 2) : pp 439-45
Dates: Created 2009/04/13; Completed 2009/06/02;
PMID: 19363184, status: MEDLINE (last retrieval date: 6/2/2009, IMS Date: 02 Jun 2009 00:00:00)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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