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Cross-validation of the alcohol and cannabis use measures in the Global Appraisal of Individual Needs (GAIN) and Timeline Followback (TLFB; Form 90) among adolescents in substance abuse treatment

Oregon Research Institute, Eugene, Oregon, United States
Addiction (Impact Factor: 4.74). 12/2004; 99 Suppl 2(s2):120-8. DOI: 10.1111/j.1360-0443.2004.00859.x
Source: PubMed

ABSTRACT

To examine the comparability, reliability and predictive validity of two instruments used to assess alcohol use and dependence: the Global Appraisal of Individual Needs (GAIN) and the Form 90 Timeline Followback (TLFB) method.
Adolescents (n = 101) admitted to a residential treatment program in the United States were interviewed at intake with the GAIN, and again within a week with a variation of TLFB, called Form 90. Alcohol and cannabis measures were compared and used to predict the number of past-month substance abuse and dependence symptoms.
Self-report measures of days of alcohol and cannabis use in the 90 days prior to intake, peak number of drinks/joints used, peak blood alcohol content (BAC) and alcohol and cannabis abuse and dependence symptom counts.
Results revealed that the measures had: (a) excellent comparability (r = 0.7-0.8) across the two instruments; (b) deteriorating reliability after reported peak BAC levels exceeded 0.50 and peak joints exceeding 19; and (c) similar and strong relationships between use measures and the number of abuse/dependence symptoms across measures and instruments.
In a sample of 101 adolescents who were admitted to residential treatment for alcohol or drug dependence, the corresponding measures from the two instruments produced comparable results. If the cross-validation of these two measures generalizes to adolescents treated in out-patient settings and other adolescent treatment populations, the GAIN and Form 90 may provide useful core alcohol measures for meta-analyses.

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Available from: Michael L Dennis, Feb 20, 2014
    • "DSM-IV Axis I diagnoses were determined with the Structured Clinical Interview for DSM-IV Non-Patient Edition (SCID; First et al., 2002). The Time-Line Follow-Back Interview (TLFB; Dennis et al., 2004) was used to assess past 60-day number of marijuana use days. Subjective marijuana craving was assessed via a 10-item Marijuana Craving Questionnaire (MCQ; Budney et al., 2003). "
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    • "s were based on client self - report to in - person interviewers using the GAIN , a bio - psychosocial assessment instrument having broad utility within adolescent and adult school , substance , health , mental health , welfare , and justice systems ( Dennis , White , & Ives , 2009 ; Ives , Chan , Modisette , & Dennis , 2010 ; Smith , Cleeland , & Dennis , 2010 ; Womack et al . , 2004 ) . The GAIN is designed to help clinicians diagnose for common psychiatric disorders based on the DSM - IV - TR ("
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