Divergence in Siblings' Adult Attachment Security: Potential Contributors and Consequences
Fortuna, Keren
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https://hdl.handle.net/2142/82183
Description
Title
Divergence in Siblings' Adult Attachment Security: Potential Contributors and Consequences
Author(s)
Fortuna, Keren
Issue Date
2009
Doctoral Committee Chair(s)
Glenn Ian Roisman
Department of Study
Psychology
Discipline
Psychology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Sociology, Individual and Family Studies
Language
eng
Abstract
Previous research has revealed only modest concordance in attachment security between siblings during childhood and adolescence. The first goal of this dissertation was to estimate sibling concordance in adult attachment security and identify factors contributing to divergence. The Adult Attachment Interview (AAI) was administered to young adult siblings to assess security as well as inferred childhood experiences with parents. Parental behaviors were also assessed via questionnaires. Participants' AAI security was unrelated within sibling pair, and differential experiences with parents partly accounted for AAI divergence. Furthermore, less supportive parenting compared with one's sibling puts individuals at relative risk for attachment insecurity. Findings are consistent with the view that within-family attachment divergence can be explained in light of nonshared environmental experiences, particularly with parents. An additional goal of this work was to link adult attachment with sibling relationships. Security was associated with self-reported and observed relationship quality. In addition, sibling dissimilarity on security predicted non-collaborative behaviors during sibling interactions. The study adds to similar findings during childhood, as well as extends the predictive significance of the AAI to this unique interpersonal context.
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