Psychometric Properties of a Persian Version of the SpREUK-P Questionnaire: An Instrument for Measuring the Importance and Frequency of Spiritual/Religious Practices in Iranian Patients with Chronic Gastrointestinal Diseases.

Attention to spiritual and religious issues is considered an important therapeutic method for patients with chronic disorders. This study aimed to assess the psychometric properties of a Persian version of the SpREUK-P questionnaire for evaluating spiritual and religious opinions among Iranian patients with chronic gastrointestinal diseases. This cross-sectional study was performed on 233 adult patients referring to the gastrointestinal clinic affiliated to Shiraz University of Medical Sciences, Shiraz, Iran, in 2017. The Persian version of the SpREUK-P questionnaire was prepared through the forward-backward translation method. The internal consistency of the questionnaire was evaluated by Cronbach's alpha coefficient. Furthermore, the construct validity of the instrument was assessed via exploratory factor analysis, while convergent and discriminant validity were investigated using Spearman correlation. Cultural adaptation, linguistic equivalency, and content validity of the Persian version of the SpREUK-P questionnaire were approved by a ten-member team of Shiraz University of Medical Sciences. Content validity indices were more than 0.8% across all items. Cronbach's alpha coefficients in terms of importance and practices were 0.81 and 0.71, respectively. Furthermore, the Persian version of the SpREUK-P showed excellent convergent validity and moderate to excellent discriminant validity. The results of exploratory factor analysis showed that all items were loaded properly on their own subscales, except for two items in the practice aspect and one item in the importance aspect. In conclusion, this study showed that the developed Persian SpREUK-P questionnaire is appropriate for assessing spiritual/religious opinions in Iranian patients with chronic diseases.