A 2010 study by Jouve, drawing on 251 examinees of the Jouve Cerebrals Test of Induction (JCTI), found that males scored higher than females on inductive reasoning at both middle/high-school and college levels, with no reliable interaction between gender and education stage. The mean gender gap was approximately 4.7 raw-score …
The reliability of a cognitive test is the consistency with which it measures whatever it measures — the precision of the scores it returns, expressed as the proportion of observed-score variance attributable to true-score variance rather than to measurement error. A test with a Cronbach’s alpha of 0.95 leaves only …
The General Knowledge (GK) subtest of the Jouve Cerebrals Crystallized Educational Scale (JCCES) measures factual breadth — the accumulated stock of information about the world that crystallized intelligence theory treats as a core component of acquired cognitive ability. A subtest of this kind has to satisfy two structural requirements: items …
The Cerebrals Cognitive Abilities Test (CCAT) is the original three-subtest crystallized-intelligence battery developed in the Cogn-IQ research program. It contains Verbal Analogies (VA), Mathematical Problems (MP), and General Knowledge (GK), and was designed to measure general crystallized intelligence and scholastic ability in adolescents and adults. The CCAT was subsequently revised …
