The personality of an employee affects their performance, which can be categorized by the five factor model including emotional stability, agreeableness, conscientiousness, openness to experience, and extraversion/introversion. Additionally, attitudes, beliefs, values, and knowledge and skills determine performance. The workplace also influences employee performance through factors such as relationships with superiors and peers, work-life balance, quality of work and workplace, privacy, violence and harassment levels, harmony, stress, morale, and overall environment.