Related Experiment Video
Updated: Aug 29, 2026

Exploring the Role of Deontic Reasoning and World Knowledge in Wason´s Selection Task
Published on: July 22, 2025
Note on Knight's analysis of the WAIS-III instruction effect on the Matrix Reasoning subtest
Richard A Charter1, Michael N Lopez
1Department of Veterans Affairs Healthcare System Long Beach, California 90822, USA.
Abstract:
Knight's 2003 analysis of the effect of the WAIS-III instructions on the Matrix Reasoning subtest was based on multiple t tests, which is a violation of conventional statistical procedures. Using this procedure significant differences were found between the group who know the subtest was untimed versus the group which did not know if the subtest was timed or untimed. Reanalysis of the data used three statistical alternatives: (a) Bonferroni correction for all possible t tests, (b) one-way analysis of variance, and (c) selected t tests with the Bonferroni correction. All three analyses yielded nonsignificant differences between means, thereby changing the conclusions of Knight's study.
More Related Videos
07:01Working Memory Training for Older Participants: A Control Group Training Regimen and Initial Intellectual Functioning Assessment
Published on: September 20, 2020
13:20Online Repetitive Transcranial Magnetic Stimulation of Dorsomedial and Dorsolateral Prefrontal Cortex in Cognition Decision Making, and Cognitive Dissonance
Published on: December 5, 2025
Related Concept Videos
Deductive Reasoning
Inductive Reasoning
Reason and Intuition
Theory of Attribution II: Kelley's Covariation Theory
Wechsler's Contribution to Measures of Intelligence