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Validity and reliability of the COJAC screening tool for co-occurring disorders
Martha A Jessup1, Suzanne L Dibble
1Department of Social & Behavioral Sciences, and The Institute for Health & Aging, San Francisco School of Nursing, University of California-San Francisco, 333 California Street, San Francisco, CA 94143, USA. marty.jessup@ucsf.edu
The American Journal on Addictions
|April 12, 2011
Summary
The Co-Occurring Joint Action Council Screening Tool (CST) shows strong reliability and validity for substance abuse screening. However, its mental health and trauma components require further development for accurate co-occurring disorder assessment.
Area of Science:
- Psychiatry
- Clinical Psychology
- Addiction Medicine
Background:
- Co-occurring disorders (COD) present complex challenges in mental health and addiction treatment.
- Accurate screening tools are crucial for identifying individuals with COD to facilitate timely and appropriate interventions.
- The Co-Occurring Joint Action Council Screening Tool (CST) was developed to address the need for a comprehensive COD screening measure.
Purpose of the Study:
- To evaluate the reliability and validity of the nine-item Co-Occurring Joint Action Council Screening Tool (CST).
- To assess the performance of the CST's substance abuse (SA), mental health, and trauma subscales.
- To determine the utility of the CST as a screening instrument for co-occurring disorders.
Main Methods:
- A cross-sectional online survey was administered to a convenience sample of 1,951 participants.
- Data collection included demographic information, the CST, the Global Appraisal of Individual Needs-Short Screener (GAIN-SS), and the PTSD Checklist (Civilian version).
- Reliability was assessed using Cronbach's alpha, and validity was examined through correlations with established measures.
Main Results:
- The CST substance abuse (SA) scale demonstrated excellent reliability (Cronbach's alpha = .84) and strong validity (correlation = .71 with GAIN-SS SA).
- The CST mental health and trauma subscales exhibited lower reliability, with Cronbach's alphas of .64 and .56, respectively.
- The CST-SA is identified as a brief, reliable, and valid measure for screening substance abuse.
Conclusions:
- The CST-SA subscale is a promising tool for identifying substance abuse in individuals with potential co-occurring disorders.
- Further research is necessary to refine or identify alternative instruments for the mental health and trauma components of the CST.
- Optimizing the CST's mental health and trauma measures is essential for its effective use in comprehensive COD screening.
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