The resource group method in severe mental illness: study protocol for a randomized controlled trial and a qualitative multiple case study.

This trial will be the first to study the effects of the RG method on empowerment in patients with SMI. By combining clinical-effectiveness data with an economic evaluation and in-depth qualitative information from primary stakeholders, it will provide a detailed overview of the RG method as a mean of improving care for patients with SMI.Trial registration The study has been registered in the Dutch Trial Register, identifier: NTR6737, September 2017.