University of Miami Scholarly Repository Open Access Dissertations Electronic Theses and Dissertations 2011-08-02 Social Aggression in Children and Adolescents: A Meta-Analytic Review Cathy Longa University of Miami, [email protected] Follow this and additional works at:https://scholarlyrepository.miami.edu/oa_dissertations Recommended Citation Longa, Cathy, "Social Aggression in Children and Adolescents: A Meta-Analytic Review" (2011).Open Access Dissertations. 625. https://scholarlyrepository.miami.edu/oa_dissertations/625 This Open access is brought to you for free and open access by the Electronic Theses and Dissertations at Scholarly Repository. It has been accepted for inclusion in Open Access Dissertations by an authorized administrator of Scholarly Repository. For more information, please contact [email protected]. UNIVERSITY OF MIAMI SOCIAL AGGRESSION IN CHILDREN AND ADOLESCENTS: A META- ANALYTIC REVIEW By Cathy Longa A DISSERTATION Submitted to the Faculty of the University of Miami in partial fulfillment of the requirements for the degree of Doctor of Philosophy Coral Gables, Florida August 2011 ©2011 Cathy Longa All Rights Reserved UNIVERSITY OF MIAMI A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy SOCIAL AGGRESSION IN CHILDREN AND ADOLESCENTS: A META- ANALYTIC REVIEW Cathy Longa Approved: Debbiesiu Lee, Ph.D. Terri A. Scandura, Ph.D. Assistant Professor of Educational Dean of the Graduate School and Psychological Studies Soyeon Ahn, Ph.D. Ora Prilleltensky, Ed.D. Assistant Professor of Educational Clinical Assistant Professor of and Psychological Studies Educational and Psychological Studies Annette La Greca, Ph.D. Professor of Psychology and Pediatrics LONGA, CATHY (Ph.D., Counseling Psychology) Social Aggression in Children and Adolescents: (August 2011) A Meta-Analytic Review Abstract of a dissertation at the University of Miami. Dissertation supervised by Professors Debbiesiu Lee and Soyeon Ahn. No. of pages in text. (112) Social aggression has been widely studied; however, findings have been inconsistent leading to confusion within the current literature. Previous research has linked social aggression to negative outcomes; including poor peer relations, internalizing symptoms, and low levels of empathy; as well as positive attributes, including prosocial behaviors, high social status, and social intelligence. This meta-analysis examined the relationship between social aggression and various correlates, both positive and negative, as well as how age and gender moderate these relationships. With 896 correlations derived from 108 studies (of a total of 107 published articles), the results using the random-effects model for computing overall effect sizes indicated that social aggression is related with maladaptive correlates, such as externalization (r = 0.46), internalization (r = 0.16), negative individual traits (r = 0.32), as well as negative peer relations (r = 0.28). However, findings also suggest that social aggression is associated with popularity (r = 0.22) and social skillfulness (r = 0.16). Implications, limitations, and future directions are discussed. TABLE OF CONTENTS LIST OF FIGURES .............................................................................................................v LIST OF TABLES ............................................................................................................. vi CHAPTER 1. INTRODUCTION ........................................................................................1 CHAPTER 2. LITERATURE REVIEW .............................................................................4 Theoretical Models ......................................................................................................... 6 Early childhood. .......................................................................................................... 8 Middle Childhood. ...................................................................................................... 9 Adolescence. ............................................................................................................. 12 Previous Meta-Analyses on Social Aggression ............................................................ 14 Current Study ................................................................................................................ 17 Meta-Analysis ............................................................................................................... 18 CHAPTER 3. METHODS .................................................................................................20 Search Procedure .......................................................................................................... 20 Coding of Studies .......................................................................................................... 23 Power ............................................................................................................................ 25 Effect Size ..................................................................................................................... 26 Analysis......................................................................................................................... 27 CHAPTER 4. RESULTS ...................................................................................................29 Characteristics of Studies .............................................................................................. 29 Publication Bias ............................................................................................................ 30 Overall Model ............................................................................................................... 30 Gender differences. ................................................................................................... 32 iii Age differences. ........................................................................................................ 32 Relationship Between Individual Characteristics and Social Aggression .................... 36 Gender differences. ................................................................................................... 39 Age differences. ........................................................................................................ 42 Relationship Between Peer Relations and Social Aggression ...................................... 46 Gender differences. ................................................................................................... 46 Age differences. ........................................................................................................ 49 CHAPTER 5. DISCUSSION .............................................................................................53 Future Interventions ...................................................................................................... 65 Future Research ............................................................................................................ 69 Limitations .................................................................................................................... 71 Conclusion .................................................................................................................... 72 REFERENCES ..................................................................................................................74 APPENDIX ........................................................................................................................93 iv LIST OF FIGURES Figure 1. Study selection chart...........................................................................................21 Figure 2. Funnel plot of effect sizes against study sizes ....................................................31 Figure 3. Overall model .....................................................................................................33 v LIST OF TABLES Table 1. Overall Model of Relationships with Social Aggression .................................... 31 Table 2. Differences by Gender in Overall Model. .......................................................... 34 Table 3. Differences by Age in Overall Model. ................................................................ 35 Table 4. Relationship between Individual characteristics and Social Aggression. ........... 37 Table 5. Differences by Gender in the Relationship between Social Aggression and Individual Characteristics. ................................................................................................ 40 Table 6. Differences by Age in the Relationship between Social Aggression and Individual Characteristics ................................................................................................ 43 Table 7. Relationship between Peer Relations and Social Aggression. ............................ 47 Table 8. Differences by Gender in the Relationship between Social Aggression and Peer Relations. .......................................................................................................................... 48 Table 9. Differences by Age in the Relationship between Social Aggression and Peer Relations. .......................................................................................................................... 50 vi CHAPTER 1 INTRODUCTION It is no question that children can be extremely cruel to one another, as aggression is a widely studied construct within the psychological literature. Aggressive behaviors can take a variety of forms: physical aggression, verbal insults, relationship manipulation, and nonverbal expressions of disdain. Much of the previous research on aggression has focused on physical aggression (Underwood, Galen, & Paquette, 2001). Recently, there has been an explosion of interest in forms of aggression that emphasize nonphysical strategies: indirect aggression (Bjorkqvist, Lagerspetz, & Kaukiainen, 1992), relational aggression (Crick & Grotpeter, 1995), and social aggression (Galen & Underwood, 1997). Much has been made in the media and popular psychology books (e.g., Dellasega & Nixon, 2003; Simmons, 2002; Wiseman, 2002) concerning the negative consequences of social aggression, particularly as it relates to girls. It has been suggested that socially aggressive behaviors are maladaptive, hurtful, and related to negative outcomes in both the victim and the aggressor (e.g., Bjorkqvist, Osterman, & Lagerspetz, 1994; Crick, Casas, & Mosher, 1997; Heilbron &Prinstein, 2008). There have even been efforts to determine if socially aggressive behaviors belong within the Diagnostic and Statistical Manual [DSM] (Keenan, Coyne, & Lahey, 2008). Although the introduction of these constructs has generated a very useful body of research (Underwood, Galen, & Paquette, 2001), within this literature many disagreements, discrepancies, and questions remain. Included among these incongruities is whether social aggression represents a form of maladjustment arising from deficiencies 1
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