Measuring next of kin´s experience of participation in the care of older people in nursing homes

We sought to assess the measurement properties of items aimed at operationalizing participation in care by next of kin, applied in nursing homes. Data file 1: SPSS file (.sav) with sex, age category, contact person, 37 items aimed to capture participationin care. Data file 2: Excel (.xlsx) transformation tables from raw total scores, to linear logits, to linearised total scors with the same range as the original scores. Data file 3: File (.rum) for Rasch model analysis, prepared for RUMM2030.