MHPSS is increasingly seen as a critical component to effective and responsible humanitarian programming. This review examines the extent to which MHPSS research generated since 2010 has contributed to the public health evidence base and how this has influenced and impacted programming and policy in humanitarian settings.

This mixed-method study included a scoping literature review (n = 50) and a consultation process with qualitative key informant interviews (n = 19) and online survey responses (n = 52) to identify the facilitating and inhibiting factors for the two areas of inquiry and to understand the broader context in which knowledge is generated and taken up. The interviews were thematically analysed and the survey responses were descriptively analysed.

The review identified a rapidly growing evidence base that has evaluated a range of MHPSS interventions. However, few studies examined long-term impacts of interventions, there was limited direct evidence on outcomes for children and adolescents and whole family approaches, and there were minimal replications of the same approach that could test efficacy across settings and population groups. A general shift was identified in the consultation process away from a focus on disorder towards the more positive aspects of wellbeing. However, there remained a mismatch in many studies included in the literature review, whereby the interventions were broad, community-based but the outcome measures used still focused on changes in symptoms of mental disorders.

The evidence base for MHPSS has grown significantly over the last 10 years. However, several knowledge gaps remain, as does the divide between research and practice. Moving forward, MHPSS intervention research needs to be more responsive to the needs on the ground.