Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Stud Alcohol Drugs. 2009 May;70(3):414-25.

An item response theory modeling of alcohol and marijuana dependences: a National Drug Abuse Treatment Clinical Trials Network study.

Author information

  • 1Department of Psychiatry and Behavioral Sciences, School of Medicine, Duke Clinical Research Institute, Duke University, Duke University Medical Center, Durham, North Carolina 27710, USA. litzy.wu@duke.edu

Abstract

OBJECTIVE:

The aim of this study was to examine psychometric properties of the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV), diagnostics criteria for alcohol and marijuana dependences among 462 alcohol users and 311 marijuana users enrolled in two multisite trials of the National Drug Abuse Treatment Clinical Trials Network.

METHOD:

Diagnostic questions were assessed by the DSM-IV checklist. Data were analyzed by the item response theory and the multiple indicators-multiple causes method procedures.

RESULTS:

Criterion symptoms of alcohol and marijuana dependences exhibited a high level of internal consistency. All individual symptoms showed good discrimination in distinguishing alcohol or marijuana users between high and low severity levels of the continuum. In both groups, "withdrawal" appeared to measure the most severe symptom of the dependence continuum. There was little evidence of measurement nonequivalence in assessing symptoms of dependence by gender, age, race/ethnicity, and educational level.

CONCLUSIONS:

These findings highlight the clinical utility of the DSM-IV checklist in assessing alcohol- and marijuana dependence syndromes among treatment-seeking substance users.

PMID:
19371493
[PubMed - indexed for MEDLINE]
PMCID:
PMC2670747
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Dartmouth Journal Services Icon for PubMed Central
    Loading ...
    Write to the Help Desk