A realistic evaluation of evidence-based therapeutic processes in mental health services– Context-Mechanisms-Outcomes

Abstract

Background Evidence-based clinical practice is an inherent component of developed countries mental health professional practice, however, little is known about Ghana mental health professional perspectives on evidence-based practice. This paper outlines the processes involved in the delivery of best practice in Ghana. The paper describes a realistic evaluation of mental health nurses and allied health opinions regarding the evidenced-based therapeutic process in Ghana mental health facilities. Methods A purposive sample of 30 Mental Health Professionals (MHPs) was recruited to participate in semi-structured in-depth interviews. Thematic analysis was used to analyse the data. A programme theory of Context + Mechanism = Outcome (CMO) configuration was developed from the analysis. Results The thematic analysis identified two CMO configurations: 1) technical competency stimulates evidence-based mental health services; and, 2) therapeutic alliance-building ensures effective interaction. The study demonstrated that contextual factors (technical competencies and therapeutic alliance building) together with mechanisms (intentional and unintentional) help to promote the quality of mental health services. However, contextual factor such as the lack of sign language interpreters yielded an unintended outcome such as consumer-provider communication barrier for consumers with hearing impaired and those from linguistically minority background. Conclusion We conclude that government stakeholders and policymakers should prioritize policy documents, periodic monitoring and adequate financial incentives to support the on-going mechanisms that promote mental health professional technical competence and therapeutic alliance building.