Concurrent Validity of the Test of Nonverbal Intelligence in Parkinson's Disease Patients

• Published in: The journal of psychology Vol. 135; no. 2; pp. 205 - 212
• Main Authors: Bostantjopoulou, S., Kiosseoglou, G., Katsarou, Z., Alevriadou, A.
• Format: Journal Article
• Language: English
• Published: United States Taylor & Francis Group 01.03.2001; Taylor & Francis Inc
• Subjects: Aged; Case-Control Studies; Cognition; Cognition & reasoning; Cognitive ability; concurrent validity; Cronbach's alpha; Disease; Diseases; Female; Head injuries; Humans; Intelligence; Intelligence tests; Intelligence Tests - standards; Language; Male; Mental depression; Middle Aged; Neuropsychological Tests - standards; Neuropsychology; Nonverbal Communication - psychology; Parkinson Disease - psychology; Parkinson's disease; Parkinson's disease patients; Patient assessment; Patients; Perception; Predictive Value of Tests; Psychology; Raven's Colored Progressive Matrices; Regression Analysis; Reproducibility of Results; Test of Nonverbal Intelligence; Validity; Variables; Variance
• ISSN: 0022-3980; 1940-1019
• DOI: 10.1080/00223980109603691

The Test of Nonverbal Intelligence (TONI-2; L. Brown, R. J. Sherbenou, & S. Johnsen, 1990) and Raven's Colored Progressive Matrices (RCPM; J. C. Raven, 1965) are defined as language-free measures of cognitive ability. The purpose of the present study was to investigate the relation between the RCPM and the TONI-2 for samples of patients with Parkinson's disease (n = 75) and controls (n = 47). A regression equation was computed to evaluate the relation of the RCPM scores to the TONI-2 quotient. Regression equation results indicate that there is a significant overlapping linear variance between the two measures in both patients and controls.