Robert Serpell is Professor of Psychology at the University of Zambia. In addition to many scholarly journal articles and chapters, he has published several books including Culture's Influence on Behaviour (1976), Mobilizing Local Resources in Africa for Persons with Learning Difficulties or Mental Handicap (1984) and The Significance of Schooling: Life-Journeys in an African Society (1993). His main research interests are cultural aspects of human development, intelligence, multilingualism, literacy, assessment and intervention services for children with disabilities and their families, and e...