This study aims to develop a robust, targeted measure of patient experiences of person-centred care (PCC), informed by the lived experiences of patients with chronic illness using the psychometric theory of Rasch measurement.

The Rasch measurement model was used to analyse the psychometric functioning of 57 candidate items and select appropriate items for a targeted measure.

Participants were recruited from Prolific.com, having experience of both chronic or long-term illness and first-hand experience of primary or secondary care in the UK healthcare setting and completed a survey containing PCC items and descriptors of healthcare experience.

Data from 501 adult persons (49.5% men and 49.7% women) with different types of long-term conditions recruited from the prolific web panel.

For an initial analysis of all 57 candidate items, there were several indicators of misfit, such as signs of local dependence and multidimensionality. The response options worked as intended according to threshold ordering. After removal of misfitting items and refinement for the best spread of locations, a 14-item solution showed good fit to the Rasch model in this UK sample.

The results support a unidimensional measurement of patients’ experiences of PCC, once the local dependency was accommodated. The present work thus offers a 14-item measure of PCC experience. The present work also contains a robust item bank for the further development of dynamic computerised adaptive testing.

To assess the feasibility and acceptability of three SMS-delivered safer gambling interventions (goal setting (GS), descriptive norms (DN), injunctive norms (IN)) aimed at reducing the transition from low or moderate risk of gambling harm to problematic gambling, and the feasibility of a full-scale randomised controlled trial evaluating their effectiveness and cost-effectiveness.

Four-arm, parallel-group, pragmatic, randomised controlled feasibility study with a nested qualitative study.

The study was conducted in the UK. Participants were recruited online via UK-licensed gambling operators’ websites.

Adults aged ≥18 years, gambling online at least weekly, with low-to-moderate gambling risk levels.

Participants were block randomised in equal proportions to a delayed intervention control group or one of three 6-week text message interventions delivered via the secure messaging app WIRE: (1) GS: weekly prompts to set gambling-related goals with personalised feedback; (2) DN: weekly messages challenging misperceptions about peer gambling behaviours and (3) IN: weekly messages addressing misperceptions about peer attitudes towards gambling.

Feasibility was assessed through recruitment and retention rates, intervention adherence, data completeness and feasibility and acceptability of the interventions and study procedures. Secondary outcomes included gambling risk behaviours and cognitions, anxiety, depression, quality of life, healthcare use and productivity, measured at baseline, 7-weeks, and 3- and 6-months post-randomisation.

Recruitment took place between April 2021 and August 2022 with final follow-up in February 2023. 167 participants (mean age 51.5; 36% male) were randomised (GS=43; DN=41; IN=42; Control=41). Retention at 6-months was 95.2%, with >95% completion for all outcome measures. Intervention adherence was high, with >95% of DN and IN participants responding to ≥4 messages and 93% of GS participants setting ≥4 goals. Qualitative findings indicated broad acceptability of the interventions and study procedures.

The study was feasible to conduct, interventions and study procedures acceptable to participants, and predefined progression criteria met. Findings support proceeding to a full-scale randomised controlled trial of effectiveness and cost-effectiveness, focusing on the social norms interventions.

ISRCTN37874344.