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Related Experiment Video

Updated: Jul 7, 2026

Randomized, Triple-Blind, and Parallel-Controlled Trial of Transcranial Direct Current Stimulation for Cognitive Rehabilitation after Stroke

Randomized, Triple-Blind, and Parallel-Controlled Trial of Transcranial Direct Current Stimulation for Cognitive Rehabilitation after Stroke

Published on: June 6, 2025

Training in dual diagnosis interventions (the COMO Study): randomised controlled trial.

Elizabeth Hughes¹, Shamil Wanigaratne, Kevin Gournay

¹Health Service and Population Research Department, Institute of Psychiatry, King's College London, Denmark Hill, London SE5 8AF UK. lhughes@lincoln.ac.uk

|February 29, 2008

Summary

A brief dual diagnosis intervention training significantly improved mental health workers' knowledge and self-efficacy in treating co-occurring substance use disorders. Attitudes showed no significant change, highlighting areas for future training development.

Related Experiment Videos

Last Updated: Jul 7, 2026

Randomized, Triple-Blind, and Parallel-Controlled Trial of Transcranial Direct Current Stimulation for Cognitive Rehabilitation after Stroke

Randomized, Triple-Blind, and Parallel-Controlled Trial of Transcranial Direct Current Stimulation for Cognitive Rehabilitation after Stroke

Published on: June 6, 2025

Area of Science:

Mental Health
Addiction Psychiatry
Clinical Psychology

Background:

Co-occurring substance use disorders (dual diagnosis) are prevalent among mental health service users.
UK mental health workers often lack specialized training for dual diagnosis interventions.
This study addresses the need for effective training strategies in this area.

Purpose of the Study:

To evaluate the effectiveness of a brief dual diagnosis intervention training program for mental health case managers.
To assess the impact of training on attitudes, self-efficacy, and knowledge related to dual diagnosis.
To determine the long-term effects of the training at 18 months post-intervention.

Main Methods:

A randomized controlled trial involving 79 case managers across 12 community mental health teams.
Participants were allocated to either a training group or a control group.
Intention-to-treat analysis was used, adjusting for baseline scores and team effects.

Main Results:

The training group showed significant improvements in knowledge about dual diagnosis and self-efficacy at 18 months.
Specific subscales of the Alcohol and Alcohol Problems Perception Questionnaire (AAPPQ) related to knowledge and self-esteem in working with alcohol also improved significantly.
Overall AAPPQ scores and attitudes towards working with drinkers and drug users did not reach statistical significance.

Conclusions:

A brief dual diagnosis training intervention can enhance mental health workers' knowledge and self-efficacy for at least 18 months.
Further research is needed to optimize training duration and ensure skills integration into routine practice.
Investigating the impact of training dose and implementation strategies is crucial for improving care for dual diagnosis clients.