Marc Marschark, Ph.D., is Professor Emeritus at the National Technical Institute for the Deaf, a college of Rochester Institute ofTechnology, where he founded the Center for Education Research Partnerships. His primary interest is in relations among language, learning, and cognition among deaf children and adults in format and informai educational settings. Harry Knoors, Ph.D., is a Professor at the Behavioural Science Institute of the Radboud University Nijmegen, the Netherlands, and Academic Director at Royal Dutch Kentalis.
Knoors is trained as a psycholinguist, specializing in language and literacy of deaf children. He is involved in research on childhood deafness (mainly languagè, literacy, and psychosocial development) and research on the effectiveness of special education.