Date of Graduation

8-2024

Document Type

Dissertation

Degree Name

Doctor of Philosophy in Psychology (PhD)

Degree Level

Graduate

Department

Psychological Science

Advisor/Mentor

Cavell, Timothy A.

Committee Member

Bridges, Ana J.

Second Committee Member

Behrend, Douglas A.

Keywords

Externalizing problems; Internalizing symptoms; Peer acceptance; Peer victimization; School lunchroom

Abstract

Steggerda et al. (2022a) found that children’s self-reported lunchtime peer acceptance was predictive of later experiences of peer victimization. These authors speculated that the link between lunchtime peer acceptance and peer victimization is mediated by children’s internalizing or externalizing problems. The current study adds to the field’s understanding of the link between children’s lunchtime peer acceptance and peer victimization by considering whether internalizing symptoms and externalizing problems are potential mediating variables. Participants were 659 children from 34 classrooms (M age 9.31 years, SD = 0.50; 50.7% female; 42.7% Hispanic/Latinx, 30.3% White, 10% Pacific Islander, 7.8% bi/multiracial, 2.2% American Indian, 2.2% Black, 1.9% Asian, and 2.9% other). I used structural equation modeling (SEM) to test whether internalizing symptoms, externalizing problems, or the combination of these adjustment difficulties mediate the prospective link between lunchtime peer acceptance and peer victimization. I also tested whether pathways among these variables differed by gender, race, and ethnicity. Results indicated that internalizing symptoms consistently mediated the prospective relation between lunchtime peer acceptance and peer victimization. Significant differences in the pattern of findings were found across race and ethnic subgroups. Discussed are potential implications these findings have for school-based interventions for bullied children.

Available for download on Wednesday, September 10, 2025

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