chapter  1
Sisters and Brothers: Current Issues in Developmental Research: Judy Dunn
Pages 17

Research into the nature of sibling relationships has made especially vigorous progress in two domains, namely, the study of developmental changes in the relationships of young siblings and the study of siblings' relationships in middle childhood. Before considering these, we should note that there has been

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much progress on the issue of how we can best measure the relationship of siblings of different ages (e.g., Buhrmester & Furman, 1987; Dunn, Stocker, & Plomin, 1990a), and a new awareness of the importance of obtaining assessments of the relationship from different family members and sources (e.g., Boer, 1990).