Related Experiment Video
Updated: Feb 11, 2026

The Motivation for Alcohol Reward: Predictors of Progressive-Ratio Intravenous Alcohol Self-Administration in Humans
Published on: April 28, 2022
A randomized clinical trial of motivational enhancement therapy for alcohol problems in partner violent men
Christopher M Murphy1, Laura A Ting1, Lisa C Jordan1
1University of Maryland, Baltimore County, United States.
Abstract:
This study examined the efficacy of brief alcohol intervention in the context of community-based treatment for partner violence. In a randomized clinical trial, 228 partner-violent men with hazardous or problem drinking were recruited at three Intimate Partner Violence (IPV) treatment agencies and randomly assigned to receive one of two 4-session alcohol interventions: Motivational Enhancement Therapy (MET: N = 110) or Alcohol Education (AE: N = 118). After completing alcohol intervention, participants received standard agency counseling services for IPV. Participants completed assessments of alcohol use, drug use, and IPV at pre-treatment, post-alcohol intervention, and quarterly follow-ups for 12 months. At the end of the 4-session alcohol intervention, MET participants displayed greater acknowledgment of problems with alcohol than AE participants (Partial ή2 = 0.039, p = 0.006). Significant changes from baseline across treatment conditions (at p < 0.001) were observed for percent days of alcohol abstinence [95% empirical CI for Partial ή2 =0.226, 0.296], heavy drinking [0.292, 0.349], illicit drug use [0.096, 0.156] and partner violence [0.282, 0.334]. No significant condition differences (treatment by time interactions) were found for alcohol abstinence [95% empirical CI for Partial ή2 = 0.007, 0.036], heavy drinking [0.016, 0.055], illicit drug use [0.005, 0.035] or partner violence [0.001, 0.004]. Results encourage continued use of brief alcohol interventions in community IPV services, but do not provide evidence of a unique benefit of MET in reducing alcohol use in this population.
Related Concept Videos
Clinical Trials
There are four phases in a clinical trial. A phase one...
Clinical Trials: Overview
Statistical Software for Data Analysis and Clinical Trials
Secondary Motives: Power Motivation and Achievement Motivation
Power motivation is characterized by the desire to influence, control, or have an impact on others. It is shaped by an individual's experiences, social environment, and cultural context. People with high power motivation are...
Secondary Motives: Affiliation Motivation and Aggression Motivation
Self-Evaluation: Self-Enhancement and Self-Verification

