Item Reduction

How it works

Risks & contraindications

Evidence quality

Other

Highlighted claims

• Items were removed over five rounds of analysis. — Patient-reported experience measures for person-centred care: a survey for the development and psychometric testing of a targeted measure, the EPCC-14
• The initial full item set had psychometric problems including high fit residuals, local dependency, and failure to meet unidimensionality criteria. — Patient-reported experience measures for person-centred care: a survey for the development and psychometric testing of a targeted measure, the EPCC-14
• Three initial items showed uniform differential item functioning by age. — Patient-reported experience measures for person-centred care: a survey for the development and psychometric testing of a targeted measure, the EPCC-14
• Retention decisions balanced statistical evidence with theoretical considerations, conceptual value, clinical relevance, and patient-identified wording. — Patient-reported experience measures for person-centred care: a survey for the development and psychometric testing of a targeted measure, the EPCC-14
• The refinement process considered whether retained items represented key person-centred care domains such as information-sharing, shared decision-making, care planning, and goal-setting. — Patient-reported experience measures for person-centred care: a survey for the development and psychometric testing of a targeted measure, the EPCC-14
• The initial 57-item analysis had properly ordered response thresholds, indicating participants used response categories as intended. — Patient-reported experience measures for person-centred care: a survey for the development and psychometric testing of a targeted measure, the EPCC-14