1. Sibling differentiation in activity interests: Longitudinal linkages to sibling relationship quality and self-worth Open Access Author: Doughty, Susan Elizabeth Title: Sibling differentiation in activity interests: Longitudinal linkages to sibling relationship quality and self-worth Graduate Program: Human Development and Family Studies Keywords: sibling relationshipshomophilydeidentificationactivity interestsself-worth File: Download Doughty_dissertation_revised_11-30-15.pdf Committee Members: Susan Marie Mc Hale, Dissertation Advisor/Co-AdvisorMark E Feinberg, Committee MemberGregory M Fosco, Committee MemberD Wayne Osgood, Committee Member