Abstract
Multi-group confirmatory factor analysis and multi-group structural equation modeling were used to test correlates of overt and relational aggression between young adolescent siblings across four groups (i.e., male/male, male/female, female/male, and female/female sibling pairs), using 433 predominately European American families. Similar patterns of associations were found across groups when distinguished by gender composition. Family environment emerged as an important factor in explaining internalizing problems as well as overt/relational aggression for both younger and older siblings. While perceived maternal psychological control was significantly positively related to overt/relational aggression and internalizing problems for younger siblings, it was significantly positively associated with only relational aggression for older siblings. Findings also provided partial support for the positive linkages between young adolescents’ aggression and their own and siblings’ internalizing problems above and beyond the aforementioned family and maternal variables. Results of the current study extend the understanding of adolescent aggression to a new relational context, or among siblings, and highlight the role of family factors in promoting or buffering the impact of aggression on internalizing behaviors.
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Notes
Because there were only four mothers who did not complete high school, these mothers were combined into the high school graduate group.
We further conducted MGCFA incorporating the latent variables of overt and relational aggression for younger and older siblings, respectively. For example, latent construct of overt aggression for younger siblings was defined by two indicators such as older siblings’ perpetration and younger siblings’ victimization. However, this model fit the data poorly.
Instead of outdated rules of thumb (e.g., 10 subjects per parameter) for the minimum sample size needed to achieve adequate power in SEM, some researchers suggest that df is significantly linked to consideration of the minimum levels of N (MacCallum et al. 1996; McQuitty 2004). That is, when df is large, reasonable power is assured by smaller sample sizes. Based on the information they provide, df = 345 and N = 94 (the smallest subgroup of the sample, i.e., male/female sibling dyads) achieved a power of .90 or greater.
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We would like to thank Kerri Modry-Mandell for her help in developing data collection protocols, and Robert Lanza for his technical support for Web-based surveys.
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This study was a portion of the first author’s doctoral dissertation, directed by the second author.
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Yu, J.J., Gamble, W.C. Familial Correlates of Overt and Relational Aggression between Young Adolescent Siblings. J Youth Adolescence 37, 655–673 (2008). https://doi.org/10.1007/s10964-007-9208-0
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DOI: https://doi.org/10.1007/s10964-007-9208-0