title: Concurrent validity of the Test of Nonverbal Intelligence in Parkinson's disease patients.
abstract: 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.
authors.affiliation: 2nd Department of Neurology, University of Thessaloniki, Greece.
authors.forename: S
authors.initials: S
authors.lastname: Bostantjopoulou
authors.forename: G
authors.initials: G
authors.lastname: Kiosseoglou
authors.forename: Z
authors.initials: Z
authors.lastname: Katsarou
authors.forename: A
authors.initials: A
authors.lastname: Alevriadou
mesh_terms: D000368:Aged; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D007360:Intelligence; D007361:Intelligence Tests / Q000592:standards*; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests / Q000592:standards; D009633:Nonverbal Communication / Q000523:psychology*; D010300:Parkinson Disease / Q000523:psychology*; D011237:Predictive Value of Tests; D012044:Regression Analysis; D015203:Reproducibility of Results