Reviews the major transitional object (TO) theories in terms of origin, development, and psychological meaning. Examines the validity of TO (intense, persistent attachments young children develop for blankets, soft toys, and bits of cloth) theory in light of current empirical knowledge of TO behavior. (HOD)

Discusses research on human development from an interactional perspective; methodological problems connected with interindividual differences in biological maturation (using empirical studies from a longitudinal program); and major implications for further development research in an interactional perspective. (Author/BE)

Three studies examined three-, five-, and seven-year-old children's understandng of verbal terms ("easy" and "hard") concerning personal competence. Studies focused on developmental change in understanding the terms and were designed to provide information about the order in which understanding of the terms was acquired. (HOD)

It is well known that human development is influenced by social change. In particular, as evidenced by research on German unification, the rapid change of social institutions can impact on various aspects of behaviour and development. Based on my own research experience in this field, I want to show the necessity for a better interdisciplinary…