The Changing Nature of Power, Control, and Influence in Sibling Relationships.

The sibling relationship is unique in that it transforms across development from hierarchical in early childhood, to egalitarian by adulthood. The present article reviews the previous theorizing and research literature regarding how and why power, control, and therefore sibling influence, change over the course of the first couple of decades, and introduces the goals and advancements made by the new research presented in this issue.