"compared with their more impulsive peers, highly self-disciplined eighth graders earned higher GPAs and achievement-test scores, were more likely to gain admis

"compared with their more impulsive peers, highly self-disciplined eighth graders earned higher GPAs and achievement-test scores, were more likely to gain admission to a selective high school, had fewer school absences, spent more time on their homework, watched less television, and started their homework earlier in the day." First has a lot to do with what is expected at school (wonder what the data looks for 3rd level education) and the rest is pretty obvious...