Initially the Disabled Academics Study (DAS) only focused on disabled faculty but, the study expanded to later include graduate students. While the study initially did not have the resources to tailor the study to some of the unique considerations of graduate students' interactions with academia Price later decided to include graduate students since many graduate student simulanteously hold faculty, staff, or administrator roles - since 70 percent of postsecondary instruction is carried out by non-tenure-track instructors.