Protocol for evaluation of Movember's scaling what works grant funding program: Supporting the delivery of mental health interventions for men & boys in Australia, Canada and the United Kingdom.

Movember's Scaling What Works program launched in 2022 supports 17 diverse mental health projects across three countries targeting men and boys.

• Projects span Australia, Canada, and the United Kingdom.
• Projects target communities, schools, and workplaces.
• The program aims to address the varied needs and contexts of men and boys.
• The grant funding program was launched in 2022.

The evaluation protocol is structured across four domains: implementation, effectiveness, cost, and scalability.

• Cost domain includes both implementation costs and cost-effectiveness assessment.
• The Intervention Scalability Assessment Tool (ISAT) is used as an overarching framework.
• Scalability considerations are embedded into the evaluation design from the outset.
• Data will be collected qualitatively and quantitatively from project participants, facilitators, and Movember staff throughout the funding period.

The Personal Wellbeing Index (PWI) was selected as a universal outcome measure to assess effectiveness across all 17 projects.

• The PWI serves as a common metric applied universally across all projects despite their diversity.
• Data will be collected from project participants throughout the funding period.
• The use of a universal measure is intended to enable cross-project comparisons.

A purpose-built scalability assessment tool was developed in consultation with the creator of the ISAT, tailored to project-specific needs.

• The tool was developed specifically for the SWW program evaluation.
• It was created in consultation with the ISAT's creator.
• The tool is tailored to accommodate the project-specific needs of the 17 diverse projects.
• Scalability assessment is described as a strong focus of the overall evaluation.

Mental ill health among men and boys is identified as a significant global issue, with multiple barriers to care.

• Barriers include recognising symptoms, seeking help, and accessing services.
• The SWW program was developed in direct response to these barriers.
• The program addresses varied needs across community, school, and workplace contexts.

The evaluation aims to inform mental health service providers and funders on best practices for scaling interventions within grant-funded contexts.

• The evaluation will provide insights into program effectiveness, implementation strategies, delivery costs, and cost-effectiveness.
• A strong focus on scalability is intended to generate generalizable knowledge for funders and providers.
• The protocol is designed to support decisions about scaling successful interventions beyond the grant-funded period.