The Language Proficiency Profile-2: Assessment of the Global Communication Skills of Deaf Children Across Languages and Modalities of Expression.
Bebko
James M.
JM
The first two authors contributed equally to this article; authorship is listed in alphabetical order. This research was supported in part by a grant awarded to Rosemary Calderon by the University of Washington Royalty Research Fund and by a Social Science and Humanities Research Council Small Grant awarded to James M. Bebko. For specific use of the LPP-2Department of Psychology, York University, 4700 Keele Street, Toronto, Ontario, Canada M3J 1P3. jbebko@yorku.ca
Calderon
Rosemary
R
Treder
Robert
R