Redesigning a Fidelity Measurement Tool for Early Psychosis Services: Responding to Evolving Service Landscapes in Australia.

Abstract

INTRODUCTION: In Australia, early implementation of headspace Early Psychosis (hEP) services was supported by fidelity assessments using the Early Psychosis Prevention and Intervention Centre (EPPIC) Model Integrity Tool (EMIT). Its suitability became limited by ceiling effects and limited sensitivity to evolving service contexts. This paper describes the redevelopment of EMIT into the Revised-EMIT (REMIT) and testing implementation of the tool. METHODS: A multi-phase mixed-methods, human-centred design approach was used. Phases included reviewing international fidelity frameworks, stakeholder co-design and iterative redevelopment of fidelity items, scoring and data sources. Testing of the R..