Cognitive Performance and Functional Competence as Predictors of Community Independence in Schizophrenia
- 30 July 2008
- journal article
- Published by Oxford University Press (OUP) in Schizophrenia Bulletin
- Vol. 36 (2), 381-387
- https://doi.org/10.1093/schbul/sbn095
Abstract
Measures of functional competence have been introduced to supplement standard cognitive and neuropsychological evaluations in schizophrenia research and practice. Functional competence comprises skills and abilities that are more relevant to daily life and community adjustment. However, it is unclear whether relevance translates into significantly enhanced prediction of real-world outcomes. The aim of this study was to assess the specific contribution of functional competence in predicting a key aspect of real-world outcome in schizophrenia: community independence. Demographic, clinical, cognitive, and functional competence data were obtained from 127 patients with schizophrenia or schizoaffective disorder and used to predict community independence concurrently and longitudinally after 10 months. Hierarchical regression analyses indicated that demographic, clinical, and cognitive predictors accounted jointly for 35%-38% of the variance in community independence across assessment points. Functional competence data failed to add significantly to this validity. Considered separately from demographic and clinical predictors, cognitive and functional competence data accounted for significant amounts of outcome variance. However, the addition of functional competence to standard cognitive test data yielded a significant increase in validity only for concurrent and not for longitudinal prediction of community independence. The specific real-world validity of functional competence is modest, yielding information that is largely redundant with standard cognitive performance.Keywords
This publication has 31 references indexed in Scilit:
- Predicting Schizophrenia Patients’ Real-World Behavior with Specific Neuropsychological and Functional Capacity MeasuresBiological Psychiatry, 2008
- A Meta-Analysis of Cognitive Remediation in SchizophreniaAmerican Journal of Psychiatry, 2007
- Toward a Model of Memory Enhancement in Schizophrenia: Glucose Administration and Hippocampal FunctionSchizophrenia Bulletin, 2007
- A Virtual Reality Apartment as a Measure of Medication Management Skills in Patients With Schizophrenia: A Pilot StudySchizophrenia Bulletin, 2007
- The Role of Neurocognition and Social Context in Predicting Community Functioning Among Formerly Homeless Seriously Mentally Ill PersonsSchizophrenia Bulletin, 2006
- Development of a Brief Scale of Everyday Functioning in Persons with Serious Mental IllnessSchizophrenia Bulletin, 2006
- Measuring Changes in Functional Status Among Patients With Schizophrenia: The Link With Cognitive ImpairmentSchizophrenia Bulletin, 2005
- Psychological testing and psychological assessment: A review of evidence and issues.American Psychologist, 2001
- Neurocognitive deficit in schizophrenia: A quantitative review of the evidence.Neuropsychology, 1998
- The clinical utility of the Dementia Rating Scale for assessing Alzheimer patientsJournal of Chronic Diseases, 1984