Patient-reported experiences of consultation with an advanced nurse practitioner: Factor structure and reliability analysis of the patient enablement and satisfaction survey

Aim The aim was to analyse the psychometric properties of a patient-reported-experience measure, the Patient Enablement and Satisfaction Survey (PESS), when used to evaluate the care provided by Advanced Nurse Practitioners (ANPs) in terms of factor structure and internal consistency. The PESS is a 20-item, patient-completed data collection tool that was originally developed to measure patient experience and enablement following consultation with nurses in general practice. Design Cross-sectional survey; validity and reliability analysis. Methods The sample in this study consisted of 178 patients who consulted with 26 ANPs working in four different specialities. Data were collected between June and December 2019. An exploratory factor analysis of the PESS was conducted to determine convergent validity which was supported by parallel analysis and the traditional Kaiser criterion. The internal consistency of individual PESS items was determined via Cronbach's alpha, McDonald's omega, the Average Variance Extracted tests and item-subscale/total score correlations. Results A three-factor structure (PESS-ANP) was found through exploratory factor analysis and this was supported by parallel analysis, the traditional Kaiser criterion and the percentage of variance explained criterion. A high degree of internal consistency was reported across all factors. One question was omitted from the analysis ('Overall Satisfaction') following the identification of problematic cross-loadings. The three factor solution was identified as: patient satisfaction, quality of care provision and patient enablement. Conclusion The findings of this study propose a three-factor model that is sufficiently reliable for analysing the experience and enablement of patients following consultation with an ANP. Impact Increasingly, patient-reported experience measures are being used to evaluate patients' experience of receiving care from a healthcare professional. The PESS was identified to be reliable in evaluating the experience of patients who receive care from an ANP while a three-factor structure was proposed that can capture specific attributes of this care.