“…However, as Schumin and Vaughn ( 1995) pointed out, there is no set standard for choosing an instructional accommodation. Teachers are more likely to initiate instructional modifications that they view as acceptable (Fuchs, Fuchs, Hamlett, Phillips, & Karns, 1995;Polloway, Bursuck, Jayanthi, Epstein, & Nelson, 1996). Factors that influence acceptability include the amount of time, effort, and resources required to implement it (Schumm &Vaughn, 1995); the degree to which changes in instruction enhance (or conflict with) the needs of single versus multiple students ; and the teacher's perception of the effectiveness of the accommodation (Whinnery, Fuchs, & Fuchs, 1991).…”