The aim of the study was to develop and test an instrument, underpinned by a recognized theoretical framework, that examines how staff perceive person-centred practice, using proven methods of instrument design and psychometric analysis. The study used a mixed method multiphase research design involving: two Delphi studies to agree definitions and items to measure the constructs aligned to the person-centred practice theoretical framework (Phase 1); and a large-scale quantitative cross-sectional survey (Phase 2). Phase 1 was an international study involving representatives from seven countries across Europe and Australia, with Phase 2 conducted in one country across five organizations. Two international panels of experts (n = 33) in person-centred practice took part in the Delphi study and a randomly selected sample of registered nurses (n = 703, 23.8%) drawn from across a wide range of clinical settings completed the Person-centred Practice Inventory – Staff (PCPI-S). The main outcome is to establish a measure of staff perceptions of person-centred Practice. Broad consensus on definitions relating to 17 constructs drawn from a person-centred practice framework was achieved after two rounds; likewise with the generation of 108 items to measure the constructs; a final instrument comprising 59 items with proven psychometric properties was achieved. The PCPI-S is psychometrically acceptable instrument validated by an international expert panel that maps specifically to a theoretical framework for person-centred practice and provides a generic measure of person-centredness.

Facilitation is a promising implementation intervention, which requires theory-informed evaluation. This paper presents an exemplar of a multi-country realist process evaluation that was embedded in the first international randomised controlled trial evaluating two types of facilitation for implementing urinary continence care recommendations. We aimed to uncover what worked (and did not work), for whom, how, why and in what circumstances during the process of implementing the facilitation interventions in practice. This realist process evaluation included theory formulation, theory testing and refining. Data were collected in 24 care home sites across four European countries. Data were collected over four time points using multiple qualitative methods: observation (372 h), interviews with staff (n = 357), residents (n = 152), next of kin (n = 109) and other stakeholders (n = 128), supplemented by facilitator activity logs. A combined inductive and deductive data analysis process focused on realist theory refinement and testing. The content and approach of the two facilitation programmes prompted variable opportunities to align and realign support with the needs and expectations of facilitators and homes. This influenced their level of confidence in fulfilling the facilitator role and ability to deliver the intervention as planned. The success of intervention implementation was largely dependent on whether sites prioritised their involvement in both the study and the facilitation programme. In contexts where the study was prioritised (including release of resources) and where managers and staff support was sustained, this prompted collective engagement (as an attitude and action). Internal facilitators’ (IF) personal characteristics and abilities, including personal and formal authority, in combination with a supportive environment prompted by managers triggered the potential for learning over time. Learning over time resulted in a sense of confidence and personal growth, and enactment of the facilitation role, which resulted in practice changes. The scale and multi-country nature of this study provided a novel context to conduct one of the few trial embedded realist-informed process evaluations. In addition to providing an explanatory account of implementation processes, a conceptual platform for future facilitation research is presented. Finally, a realist-informed process evaluation framework is outlined, which could inform future research of this nature. Current controlled trials ISRCTN11598502 .