Introduction
psychotic disorders, Psychotic disorders
Family involvement is a key element of the evidence-based treatment for persons with psychotic disorders (F20–29 in ICD-10). Its fundamental role is supported by well-documented beneficial effects for patients and relatives (Bighelli et al., Family psychoeducation (FPE) is a structured family intervention that includes separate alliance sessions with patient and relative(s) followed by joint psychoeducative sessions, communication skills exercises, and problem solving sessions (Lucksted et al., Family interventions are not the only evidence-based practices (EBPs) that suffer from underuse in mental health care (Torrey et al., Implementation strategies frequently used in mental health services research include training and supervision, toolkits and educational material, local or regional support teams, and some form of quality or fidelity monitoring (Menear & Briand, In 2017, the Norwegian Directorate of Health issued national recommendations on family involvement and support in the health- and care services, based on legal regulations, research evidence, ethical considerations, and discussions between key stakeholders and experts (Norwegian Directorate of Health, The purpose of the ‘Implementation of Family Involvement for persons with Psychotic disorders’ (IFIP) trial was to implement selected recommendations from the national guidelines in Norwegian CMHCs (Hestmark et al., 