fa تأثیر دستورالعمل کاهش ساعات کار بر تعهد سازمانی پرستاران بخش‌های مراقبت ویژه در بیمارستان ولی‌عصر (عج) بیرجند General پژوهشي Research Article Background and AimOrganizational commitment subject has been attracted the attention of many researchers in recent years. In health care organizations, increasing of commitment and responsibility in human resources is very important, because customers of health organizations are human resources of other organizations. The present study was done to determine the effect of instruction of reducing work hours on organizational commitment of intensive care nurses.   Materials and MethodsIn this semi experimental study, all nurses working in intensive care units were samples. Data collection was done by Allen and Meyer`s organizational commitment questionnaires before the implementation of instruction of reducing work hours and six month after it. Data was analyzed by statistical SPSS 16 software in significance level of P Nursing Staff,Hospital,Attitude of Health Personnel,Work Schedule Tolerance,Intensive Care Units,Organizational commitment,Nurses 190 198 http://mcj.bums.ac.ir/browse.php?a_code=A-10-1-404&slc_lang=fa&sid=1 Hamideh Dehghani حمیده دهقانی 10031947532846004135 10031947532846004135 No Instructor, Faculty of Nursing and Midwifery, Shahid Sadoughi University of Medical Sciences, Yazd, Iran کارشناس ارشد پرستاری، مربی و عضو هیات علمی، دانشکده پرستاری و مامایی، دانشگاه علوم پزشکی شهید صدوقی یزد، ایران Tahereh Salimi طاهره سلیمی 10031947532846004136 10031947532846004136 No Instructor, Faculty of Nursing and Midwifery, Shahid Sadoughi University of Medical Sciences, Yazd, Iran کارشناس ارشد پرستاری، مربی و عضو هیات علمی، دانشکده پرستاری و مامایی، دانشگاه علوم پزشکی شهید صدوقی یزد، ایران Mahmoud Hooshyar محمود هوشیار 10031947532846004137 10031947532846004137 Yes MSc, Student of Intensive Care Nursing, Faculty of Nursing and Midwifery, Shahid Sadoughi University of Medical Sciences, Yazd, Iran. Email: mahmud.hooshyar@gmail.com دانشجوی کارشناسی ارشد پرستاری مراقبت ویژه،دانشکده پرستاری و مامایی، دانشگاه علوم پزشکی شهید صدوقی یزد، ایران. تلفن: 05614442055 پست الکترونیک: mahmud.hooshyar@gmail.com Hossein Fallahzadeh حسین فلاح زاده 10031947532846004138 10031947532846004138 No Associate Professor, PhD in Biostatistics, Faculty of Health , Shahid Sadoughi University of Medical Sciences, Yazd, Iran دانشیار دانشکده بهداشت، دانشگاه علوم پزشکی شهید صدوقی یزد، ایران