Women attribute success to external factors, such as luck, men attribute their success to their own abilities
"Women who are career-oriented tend to have high self-esteem and self-confidence, and this factor is predictive of women's career achievements, especially in male-dominated occupations such as scientist or politician. Women generally tend to underestimate themselves, whereas men usually tend to overestimate their abilities and performance. This pattern is linked to women's tendency to attribute success to external factors, such as luck, whereas men attribute their success to their own abilities, (...). Women tend to attribute their failures to internal sources, such as lack of ability or effort, whereas men excuse failure by external factors, such as bad luck", Catherine Hakim (2000), Work-Lifestyle Choices in the 21st Century, Oxford, Oxford University Press: 186.