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Genetic and contextual risks and developmental mechanisms underlying childhood aggression and young adult justice system involvement

Published online by Cambridge University Press:  23 September 2026

Savannah G. Ostner*
Affiliation:
Department of Psychology, Arizona State University, USA
Jenn-Yun Tein
Affiliation:
Department of Psychology, Arizona State University, USA
Daniel S. Shaw
Affiliation:
Department of Psychology, University of Pittsburgh, USA
Erika Westling
Affiliation:
Oregon Research Institute, USA
Jazmin Brown-Iannuzzi
Affiliation:
Department of Psychology, University of Virginia, USA
Kathryn Lemery-Chalfant
Affiliation:
Department of Psychology, Arizona State University, USA
*
Corresponding author: Savannah G. Ostner; Email: sostner@asu.edu
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Abstract

Aggressive behavior, shaped by genetics and environmental or contextual influences, is expressed differently across development and may lead to criminal justice involvement through arrests and incarceration for some individuals. This study examined the differential impacts of early childhood contextual risk and polygenic risk on a developmental cascade from middle childhood physical aggression and dysregulation to adolescent antisocial behavior, to criminal justice system involvement by age 19, and whether these risks were mitigated by random assignment to the Family Check-Up (FCU) prevention program. The sample included high-risk toddler (N = 731; Mage = 28.2 months, SD = 3.28; 49.5% female, 50% White, 28% Black, 13% Hispanic) and parent dyads involved in a randomized-controlled trial of the FCU and followed longitudinally across 11 waves from ages 2 to 19. Results supported a developmental cascade from middle childhood physical aggression (parent reported) to self-reported legal system involvement at age 19. Early cumulative contextual risk predicted arrests (b = 0.35, p = .001), while a risk tolerance polygenic score predicted self-reported adolescent antisocial behavior (b = 0.51, p = .005). Further, the FCU attenuated the genetic effects on antisocial behavior in adolescence. Findings highlight the value of early prevention for reducing the impact of genetic and contextual risk on rates of justice system involvement by young adulthood.

Information

Type
Regular Article
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.
Copyright
© The Author(s), 2026. Published by Cambridge University Press
Figure 0

Figure 1. Figure 1 long description.CONSORT 2010 flow diagram for the early steps multisite study. Note. More information on engagement in the intervention have been reported by Smith and colleagues (2018). All individuals in the sample were included in the analysis using Full Information Maximum Likelihood (FIML) Estimation in Mplus.

Figure 1

Table 1. Frequencies for criminal justice involvement by race/ethnicityTable 1 long description.

Figure 2

Figure 2. Figure 2 long description.Developmental cascade from childhood aggression and dysregulation to adolescent antisocial behavior to young adult trouble with the law. Note. Direct paths and covariates, including intervention group, sex at birth, age, race, and monthly income, were included but not depicted for simplicity. * p ≤ .05. ** p ≤ .01. *** p ≤ .001.

Figure 3

Figure 3. Figure 3 long description.Polygenic risk tolerance and early childhood cumulative contextual risk: direct and indirect effects on young adult trouble with the law. Note. RT PGS = polygenic risk score for risk tolerance. Direct paths and covariates, including intervention group, sex at birth, age, race, monthly income and baseline aggression at age 2, were included but not depicted for simplicity. * p ≤ .05. ** p ≤ .01. *** p ≤ .001.

Figure 4

Figure 4. Figure 4 long description.Multigroup modeling: similarities and differences by intervention status. Panel A: control group. Panel B: intervention group.

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