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Measuring fluid intelligence on a ratio scale: evidence from nonverbal classification problems and information
1ESC Lille Graduate School-LSMRC, Euralille, France. p.ruiz@esc-lille.fr
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.
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