摘要：Background: The achieve uses 7 variables: ability; clarity; help; incentive; evaluation; validity; and environment, to provide leaders and staffs with the necessary tools to improve performance, and help managers to determine cause of performance problem. And create change strategy for solving those problems. We try to determine factors affecting the performance of nurses, base on this model in selected hospital of Isfahan (Iran). Materials and Methods: This was a descriptive-correlation survey. The population of study was 85 nurses of 9 hospitals in Esfahan. Data gathering was done via achieve questionnaire. Reliability was calculated by Cronbach's alpha (r = 0.85). Data analysis was done by using SPSS 16. Result: The ability and help variables were the most important factors in improving performance of nurses and validity and evaluation were less important. Conclution: Today, staff effectiveness is one of the important problems in health care organization. In fact, performance improvement is the most important step for organization improvement.
