Development and Validation of a Patient Satisfaction Questionnaire for Home-Based Radiography Services

The increasing demand for home-based radiography services has highlighted the need for reliable tools to assess patient satisfaction. This study aimed to develop and psychometrically validate a patient-reported questionnaire to evaluate satisfaction with home-based radiography in Greece.

The questionnaire was developed through a literature review and expert consensus using two Delphi rounds, with items retained based on ≥80% agreement and a content validity ratio of >0.78. A cross-sectional validation study was conducted with 78 participants. Construct validity was assessed through exploratory factor analysis (EFA) with varimax rotation, and internal consistency was evaluated using Cronbach's alpha.

EFA identified a two-factor model that explained 57.8% of the total variance. Cronbach's alpha values were 0.74 and 0.71 for the two factors, respectively. The Kaiser-Meyer-Olkin measure was 0.62, and Bartlett's test of sphericity was significant (p < 0.01). These findings indicate acceptable construct validity and internal consistency for the proposed model.

The developed questionnaire demonstrated satisfactory psychometric properties, supporting its use in assessing patient satisfaction with home-based radiography services. Future studies should employ confirmatory factor analysis with larger and more diverse populations, as well as cross-cultural validation, to further strengthen the instrument's applicability and generalizability.