<P>While there is a body of literature on siblings in childhood, research on adolescent siblings is scarce. Although several sub-disciplines of psychology and social science, such as behavioral genetics and family psychology, have provided some empirical research on the role of adolescent siblings, this research is often narrow both in the thematic and methodological approach. Consequently, there currently exists no model that draws together these different approaches to coherently represent the significance of adolescent siblings. </P><P><EM>Siblings in Adolescence</EM> aims to address this gap. It presents a comprehensive overview of these existing studies of adolescent research and generates a developmental framework of the study on siblings by establishing links between these current findings. The book also includes empirical evidence for this new theoretical model by presenting results from several comprehensive longitudinal data sets on the meaning of sibling development. </P><P>As such this book provides a systematic contribution to the study of the development of the sibling relationship throughout adolescence and will be essential reading for those involved with the study of adolescent development, developmental psychology and family relations. </P>