The success that people achieve during their education has a substantial impact on their occupational trajectory and simultaneously opens up some career opportunities, while closing others. Traits such as conscientiousness and emotional stability have been identified as consistent longitudinal non cognitive associates of educational attainment Interestingly, several independent studies also point to dynamic relations of traits with criteria, whereby personality traits assume greater or lesser predictive power at different stages of tertiary education, and on different indicators. For instance, Zyphur, Bradley, Landis, and Tho resen (2008) analyzed the associations of cognitive ability and personality on grade point average over time. They reported that although both cognitive ability and conscientiousness were associated with initial performance only conscientiousness related to performance growth.