Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-27T21:40:19.939Z Has data issue: false hasContentIssue false
  • English
  • Français

A comparison of clustering solutions for cognitive heterogeneity in schizophrenia

Published online by Cambridge University Press:  01 July 1998

GERALD GOLDSTEIN ,
DANIEL N. ALLEN  and
BRENT E. SEATON
GERALD GOLDSTEIN
Affiliation:
VA Pittsburgh Healthcare System and University of Pittsburgh, USA
DANIEL N. ALLEN
Affiliation:
VA Pittsburgh Healthcare System and University of Pittsburgh, USA
BRENT E. SEATON
Affiliation:
VA Pittsburgh Healthcare System and University of South Dakota, USA
Get access Rights & Permissions [Opens in a new window]

Abstract

A cluster analytic solution based upon a battery of tests consisting of the Halstead Category and Tactual Performance Tests, the Trail Making Test, and the Wisconsin Card Sorting Test was compared with a solution based on the subtests of the Wechsler intelligence scales, utilizing a sample of 221 schizophrenic patients. Both analyses permitted four-cluster solutions, and we found a weak but significant degree of association between solutions. Examination of external validity of the two solutions revealed stronger associations with clinical variables for the Wechsler-scale-based solution. The major conclusions were that the existence of cognitive heterogeneity in schizophrenia exists across a broad range of abilities, and appears to reflect a combination of continuity of ability level and existence of possible subtypes requiring further neuropsychological and neurobiological verification. (JINS, 1998, 4, 353–362.)

Keywords

SchizophreniaCognitive functionCognitive heterogeneity
Type
Research Article
Information
Journal of the International Neuropsychological Society , Volume 4 , Issue 4 , July 1998 , pp. 353 - 362
Copyright
© 1998 The International Neuropsychological Society

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)