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CASIG: a consumer-centered assessment for planning individualized treatment and evaluating program outcomes
C J Wallace1, T Lecomte, J Wilde
1UCLA Intervention Research Center for Schizophrenia, Department of Psychiatry, Neuropsychiatric Institute, 760 Westwood Plaza, Los Angeles, CA 90024, USA. cwall886@concentric.net
Schizophrenia Research
|May 30, 2001
Summary
This study introduces a new outcome measure for serious and persistent mental illness, designed for clinical integration. It demonstrates reliable and valid psychometric properties for client and informant reports, aiding treatment planning and evaluation.
Area of Science:
- Psychiatry and Mental Health
- Health Services Research
- Psychometrics
Background:
- Existing outcome measures for serious and persistent mental illness (SPMI) often lack integration into clinical workflows.
- There is a need for instruments that collect individualized data, guide treatment planning, and provide aggregate program data.
- Dual-version (client self-report and informant report) measures can offer comprehensive treatment outcome assessment.
Purpose of the Study:
- To report the psychometric characteristics of a novel outcome measure for individuals with SPMI.
- To evaluate the measure's utility for clinical practice, program evaluation, and research.
- To assess the reliability and validity of both client self-report and informant versions.
Main Methods:
- Developed two parallel versions: client self-report and informant report.
- Administered the self-report measure to 244 community and 93 inpatient individuals.
- Collected informant reports for 103 community and 161 inpatient individuals.
- Assessed reliability (internal consistency, test-retest, interrater) and validity (convergent, discriminant) using established scales (BASIS-32, SF-36, CCAR).
Main Results:
- Both self-report and informant versions demonstrated acceptable internal consistency, test-retest, and interrater reliability.
- Correlations with established measures (BASIS-32, SF-36, CCAR) provided evidence for convergent and discriminant validity.
- Contrasts between community and inpatient samples supported the measure's discriminant validity.
Conclusions:
- The developed outcome measure possesses acceptable psychometric properties for assessing treatment outcomes in SPMI.
- Its design facilitates integration into clinical processes for individualized treatment planning and evaluation.
- The measure offers value for clinical practice, program management, and research due to its comprehensiveness, ease of administration, and continuity.