Aggression, Sibling Antagonism, and Theory of Mind During the First Year of Siblinghood: A Developmental Cascade Model

Ju Hyun Song; Brenda L. Volling; Jonathan D. Lane; Henry M. Wellman

doi:10.1111/cdev.12530

Aggression, Sibling Antagonism, and Theory of Mind During the First Year of Siblinghood: A Developmental Cascade Model

Ju Hyun Song, Brenda L. Volling, Jonathan D. Lane, Henry M. Wellman

Department of Child and family Studies

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

Abstract

A developmental cascade model was tested to examine longitudinal associations among firstborn children's aggression, theory of mind (ToM), and antagonism toward their younger sibling during the 1st year of siblinghood. Aggression and ToM were assessed before the birth of a sibling and 4 and 12 months after the birth, and antagonism was examined at 4 and 12 months in a sample of 208 firstborn children (initial M_age = 30 months, 56% girls) from primarily European American, middle-class families. Firstborns' aggression consistently predicted high sibling antagonism both directly and through poorer ToM. Results highlight the importance of examining longitudinal influences across behavioral, social-cognitive, and relational factors that are closely intertwined even from the early years of life.

Original language	English
Pages (from-to)	1250-1263
Number of pages	14
Journal	Child Development
Volume	87
Issue number	4
DOIs	https://doi.org/10.1111/cdev.12530
Publication status	Published - 2016 Jul 1

Bibliographical note

Publisher Copyright:
© 2016 The Authors. Child Development © 2016 Society for Research in Child Development, Inc.

All Science Journal Classification (ASJC) codes

Pediatrics, Perinatology, and Child Health
Education
Developmental and Educational Psychology

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10.1111/cdev.12530

Cite this

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abstract = "A developmental cascade model was tested to examine longitudinal associations among firstborn children's aggression, theory of mind (ToM), and antagonism toward their younger sibling during the 1st year of siblinghood. Aggression and ToM were assessed before the birth of a sibling and 4 and 12 months after the birth, and antagonism was examined at 4 and 12 months in a sample of 208 firstborn children (initial Mage = 30 months, 56% girls) from primarily European American, middle-class families. Firstborns' aggression consistently predicted high sibling antagonism both directly and through poorer ToM. Results highlight the importance of examining longitudinal influences across behavioral, social-cognitive, and relational factors that are closely intertwined even from the early years of life.",

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Aggression, Sibling Antagonism, and Theory of Mind During the First Year of Siblinghood: A Developmental Cascade Model

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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