Another positive aspect of tracking is that since it separates students by ability, students' work is only compared to that of similar-ability peers, preventing a possible lowering of their self-esteem that could result from comparisons with the work of higher ability students, or inflating the egos of the high-ability students when compared to low-ability, same-age students. Being with students of similar ability could allow students to realistically compete against one another for the highest marks with a reasonable chance of reaching the top of a class.