en بررسی روایی و پایایی نسخۀ فارسی پرسشنامه COMI در بیماران ایرانی مبتلا به گردن‌درد مزمن آموزش و تمرین حرفه ای Professional education and practice پژوهشي Research <div style="text-align: justify;"><strong>Background and Objectives</strong>: Chronic neck pain in various ages is one of the important causes of occupational disability which has imposed huge costs on health services. Therefore, developing a valid and reliable instrument to obtain information about patients with neck pain seems necessary. The present study was conducted to examine the psychometric properties of COMI-Neck questionnaire in Iranian patients with chronic neck pain.<br> <strong>Methods</strong>: In this study, in order to examine reliability (test-retest and internal consistency), the Persian version of The Core Outcome Measures Index for the neck (COMI-Neck), was completed using convenience sampling method among 100 patients with chronic neck pain attending rehabilitation clinics in Karaj city. In order to examine validity, FRI, NDI and SF-36 questionnaires were also completed by participants. Internal consistency, reliability, discriminate validity and construct validity were analyzed using SPSS 20 and statistical tests.<br> <strong>Results</strong>: The ICC test results for scores of 5 indices including pain, daily activities, adaptability to existing symptoms, quality of life, recreational and social activities in COMI-Neck, showed that very high validity of the questionnaire with Cronbach&rsquo;s alpha of 0.89. There was strong correlation between the total score of COMI-Neck and the total score of FRI (P<0.05). Also, a strong correlation existed between the total score of COMI-Neck and NDI total score (P<0.05). Strong and reverse correlations were observed between score of all scales of COMI-Neck and the total score of SF-36 (P<0.05).<br> <strong>Conclusion</strong>: The Persian version of The Core Outcome Measures Index for the neck (COMI-Neck) showed good validity and reliability in evaluation of outcome measures among Iranian patients with chronic neck pain.</div> Validity, Reliability, Chronic neck pain, COMI-Neck Questionnaire 57 64 http://fdj.iums.ac.ir/browse.php?a_code=A-10-26-5&slc_lang=en&sid=1 Morteza Rafatifard 10031947532846001204 10031947532846001204 No MSc Student, Department of Physiotherapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran Shabnam Shahali 10031947532846001205 10031947532846001205 No Assistant Professor, Department of Physiotherapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran Soheil Mansour Sohani 10031947532846001206 10031947532846001206 Yes Assistant Professor, Department of Physiotherapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran