The Wechsler Adult Intelligence Scale is the most widely used IQ test in the world. When Pearson released the WAIS-V in 2024 — the first major revision since the WAIS-IV appeared in 2008 — it introduced significant structural changes that affect how cognitive ability is measured, scored, and interpreted. Whether …
Explore the validity and reliability of the JCTI, and its strong correlations with SAT Math and RIST scores.
The Jouve–Cerebrals Test of Induction (JCTI) is a nonverbal measure of inductive reasoning. Using data from N = 2,306 examinees, this study assessed score reliability and concurrent validity against external benchmarks. Findings indicate stable internal consistency and strong convergence with quantitative and nonverbal indicators, supporting use in educational and vocational …
Dissecting Cognition: Spatial vs. Abstract Reasoning?
Summary. An analysis of performance on the Jouve–Cerebrals Test of Induction (JCTI) and four GAMA subtests (Matching, Analogies, Sequences, Construction) points to a single dominant source of individual differences rather than two separate abilities. With N = 118, factor-analytic evidence favors a general reasoning factor that subsumes both spatial–temporal and …
Dissecting Cognitive Measures in Reasoning and Language
Examining Cognitive Dimensions Through the Jouve-Cerebrals Test of Induction (JCTI) and the SAT This study investigates the dimensions of general reasoning ability (gθ) by analyzing data from the Jouve-Cerebrals Test of Induction (JCTI) and the Scholastic Assessment Test-Recentered (SAT). Focusing on the Mathematical and Verbal subscales of the SAT, the …