Education data were obtained from Project Vote Smart, a nonprofit, nonpartisan research group. This information is primarily self-reported by the legislators, either through biographical surveys or in campaign literature. In some cases, ambiguity or a lack of information meant that degrees earned and colleges attended, if any, could not be determined. The state where this is most evident is New Hampshire. Because of its unusually large, part-time legislature, the educational attainments of an inordinate number of lawmakers are unknown.