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Development and Psychometric Testing of EPAT-16: A Short and Valid Measure for Patient-Centeredness From the
Eva Christalle1, Levente Kriston1, Stefan Zeh1
1Department of Medical Psychology, University Medical Center Hamburg-Eppendorf, Germany.
Summary
A new 16-item patient-centeredness questionnaire (EPAT-16) offers a reliable and valid measure for routine care settings. This short form provides overall patient-centeredness scores efficiently, even with limited resources.
Area of Science:
- Health Services Research
- Patient Experience Measurement
- Psychometrics
Background:
- The EPAT-64 assesses patient-centeredness (PC) across 16 dimensions but requires 64 items, limiting its use in resource-constrained settings.
- A shorter, validated 16-item form (EPAT-16) was developed to overcome these limitations.
Purpose of the Study:
- To psychometrically test the EPAT-16, a short form designed to measure overall patient-centeredness.
- To provide a feasible tool for assessing PC in routine care and research.
Main Methods:
- A cross-sectional study was conducted with adult inpatients and outpatients across various conditions in Germany.
- One item per dimension was selected based on content relevance and item characteristics.
- Confirmatory factor analysis (CFA), McDonald's Omega for reliability, and construct validity analyses were performed.
Main Results:
- The EPAT-16 demonstrated high acceptability and good item-total correlations.
- Confirmatory factor analysis indicated a slight misfit of the unidimensional model but high average variance explained.
- High reliability was confirmed with McDonald's Omega, and construct validity hypotheses were supported.
Conclusions:
- The EPAT-16 possesses strong psychometric properties, making it suitable for assessing overall patient-centeredness in resource-limited environments.
- It is valuable for routine care feedback, quality improvement, and research assessing relationships with other variables.
- The generic design allows application across diverse medical conditions and settings, including public reporting.
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