Ph.D., University of Pittsburgh, 1973
Language development, language disorders in children
Professor Leonard is a speech-language pathologist with primary interests in normal and disordered child language. His teaching responsibilities have included courses and seminars in normal and disordered language development. Leonard has also served as thesis and dissertation advisor to graduate students working in these areas.
Leonard's publications include a number of articles, chapters in edited volumes, and a book. His recent research has focused on the early phonological, lexical and morphosyntactic development of children with specific language impairment (SLI). He also studies SLI across different languages. In addition, Leonard conducts research on the effectiveness of language treatment procedures.