Personality traits and psychological empowerment have various effects on employees’ attitude and behavior at work. This study adopts the in-dyad method to investigate effects of employees’ core self-evaluation and psychological empowerment on their perceived accountability and performance. It is found that core self-evaluation is positively related to perceived accountability. Psychological empowerment is also found to be positively related to perceived accountability. In addition, the positive relationship between perceived accountability and performance is confirmed. Managerial implications and suggestions for future research are thus discussed.