This document was not based on experiential expertise. It was a literature review conducted by academic researchers and mental health professionals to synthesize existing research evidence on psychosocial interventions. The authors systematically reviewed published studies to identify evidence-based interventions suitable for NDIS early intervention, rather than drawing from lived experience or consumer perspectives.

his document was partially based on practice wisdom. While primarily a literature review of research evidence, it incorporated practice wisdom through involvement of experienced practitioners like Dr Margaret Grigg (Victorian Government Mental Health Branch Director) and Dr Gerry Naughtin (Mind Australia CEO). The authors also considered participant preferences, recovery principles, and real-world implementation challenges, blending academic evidence with professional practice insights.

This document was primarily based on research and evaluation insights. It was a comprehensive literature review that systematically examined research evidence on psychosocial interventions for people with psychosocial disability. The authors conducted detailed reviews of outcome studies, effectiveness evaluations, and evidence-based interventions to identify which approaches had the strongest research support for early intervention in the NDIS context.