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The CQR-A has adequate reliability and validity. The ICC=0.757 with a 95% CI ranging from 0.579 to 0.860, p0.001, Cronbach's alpha coefficient=0.788. Pearson correlation coefficient was found to be (r=0.338, p=0.013). The individual content validity index (I-CVI) ranged from 0.67 to 1.00, and the average scale content validity index (S-CVI/Ave)=0.91. Education was the only significant predictor of compliance amongst the demographic factors with R2 of 0.158. The Arabic version of the Compliance Questionnaire on Rheumatology (CQR-A)