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The Motivation for Alcohol Reward: Predictors of Progressive-Ratio Intravenous Alcohol Self-Administration in Humans

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The Brief Alcohol Use Disorder Severity Scale: An Initial Validation Evaluation.

Suzanna Donato¹, Steven Nieto², Lara A Ray^1,2

¹Department of Psychology, University of California at Los Angeles, 1285 Franz Hall, Box 951563, Los Angeles, CA 90095, USA.

Alcohol and Alcoholism (Oxford, Oxfordshire)

|September 5, 2022

Summary

A new 9-item scale effectively measures Alcohol Use Disorder (AUD) severity across multiple dimensions. This brief instrument aids in clinical settings for personalized treatment selection and screening.

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Published on: January 5, 2018

Area of Science:

Psychiatry and Behavioral Science
Psychometrics
Clinical Psychology

Background:

Assessing Alcohol Use Disorder (AUD) severity is crucial for guiding treatment decisions.
Existing measures may not capture the multifaceted nature of AUD severity comprehensively.
A need exists for a brief, validated instrument for clinical application.

Purpose of the Study:

To develop and validate a concise, multidimensional measure of AUD severity.
To create a tool suitable for informing treatment selection in clinical practice.

Main Methods:

Utilized a large sample (n=1939) of moderate to heavy drinkers from six psychopharmacology studies.
Employed confirmatory factor analysis (CFA) and exploratory factor analysis (EFA) to refine a 9-item scale.
Assessed psychometric properties, including internal consistency and model fit.

Main Results:

A single-factor model of AUD severity demonstrated excellent fit in CFA and EFA.
The final 9-item scale exhibited good internal consistency (alpha = 0.79).
The measure showed associations with relevant clinical endpoints.

Conclusions:

A brief, 9-item scale reliably measures AUD severity.
This validated instrument can serve as a screening tool and support personalized medicine approaches.
The scale offers a practical solution for assessing AUD severity in clinical settings.