Development of an early intervention in psychosis services fidelity questionnaire.

Purpose: We describe the development of an online fidelity questionnaire for early intervention in psychosis (EIP) services, to be used in population-level research, and that can be completed using self-reports from EIP staff.

Methods: A review of key literature sources on the components of EIP services was used to identify those components eligible for inclusion in the questionnaire. A modified Delphi approach, using experts in EIP services, was used to select the most important components to include in the questionnaire.

Preliminary evaluation of a questionnaire for assessing fidelity of early intervention for psychosis services.

Purpose: Fast, easy, and cost-effective methods are needed for fidelity assessment, quality improvement initiatives, and population-based studies in Early Intervention for Psychosis (EIP) services. Having an online questionnaire assessing the fidelity of EIP services, completed by staff self-reports, and having evidence of reliability and validity, could fill that gap. We assess the reliability and validity of the Early Intervention for Psychosis Services Fidelity Questionnaire (EIPS-FQ), developed in Part I of this set of papers.

Baby or bathwater? Referrals of "non-cases" in a targeted early identification intervention for psychosis.

Purpose: To explore the unintended impact of a targeted case identification (TCI) campaign for first episode psychosis (FEP) on people not experiencing FEP ("non-cases") with respect to referral patterns and reasons for being a non-case.

Methods: Sources of referral, reasons for being a non-case, and subsequent referral destinations of non-cases were examined before and after a TCI.

Results: Following the TCI, a greater proportion of non-cases lived outside the study catchment area.