Abstract
The objective of this research is to analyze the job stress effect to the PT Bank Muamalat Indonesia, TBK Medan Balai Kota Branch’s employees performance. Using the sample of 35 employees, the researcher utilized associative approach to process the quantitative data. In addition, correlation analysis and t-test was also employed.
The results shows that the relation between job stress and working performance is relatively moderate 42% (0,42) with positive or significance correlation vector as big as 0,011 (<0,05). Additional research using t-test shows that job stress can affect the employee working performance as big as 26.77% (0,026) with significance magnitude of 0,011. This can be translated that low-level of stress can improve employees’ performance only to a certain degree. Once certain threshold has been passed, the employees’ performance will begin to decline.