الفهرس 
Validity and reliability of arabic version of mcgill pain questionnaire to assess pain after liver resection
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Abstract
Background: Liver resection is a common surgery associated with post-operative pain. So, it is necessary to measure pain post liver resection. Purpose: The purpose of this study was to test the face validity, the content validity; the internal consistency reliability and the test retest reliability of Arabic-language version of short form of McGill pain questionnaire to measure the pain level in post liver resection patients. Subjects and methods: One expert panel (consists of ten experts) and 60 patients with post liver resection pain, 120 data collection sheets (including retest sheets) were filled out in this study. Forward translation, development of preliminary initially translated version, backward translation, development of the pre-final version and testing of pre-final version using experts then testing of the final version on patients was done. Clarity index, index of content validity, descriptive statistics, Cronbach{u2019}s coefficient alpha and Spearman{u2019}s rank correlation coefficients were used for statistical analysis. Results: The study showed that scale index of clarity equals 100% and scale level clarity index universal agreement equals 100%. In addition, scale index of content validity equals 100%, scale index of content validity universal agreement equals 100%, Cronbach’s alpha equals 0.913 and all Spearman{u2019}s rank correlation coefficients between test and retest results were statistically significant. Conclusion: The Arabic-language version of the short form of McGill pain questionnaire has face and content validity, internal consistency and test retest reliability enough to measure the pain after liver resection operations