Thompson James R, Bradley Valerie J, Buntinx Wil H E, Schalock Robert L, Shogren Karrie A, Snell Martha E, Wehmeyer Michael L, Borthwick-Duffy Sharon, Coulter David L, Craig Ellis Pat M, Gomez Sharon C, Lachapelle Yves, Luckasson Ruth A, Reeve Alya, Spreat Scott, Tassé Marc J, Verdugo Miguel A, Yeager Mark H
Department of Special Education: MC 5910, Illinois State University, Normal, IL 61790-5910, USA.
Intellect Dev Disabil. 2009 Apr;47(2):135-46. doi: 10.1352/1934-9556-47.2.135.