In the early intervention sample, boys increased more in aggression than girls, but intervention effects did not differ by gender¶
Claim · All claims
Evidence · 1 study · causalr2·q3·i1small
Currency · newest study 2002 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q3 i1 Boys increased significantly more in aggression than girls (printed effect size 0.27 SD), with no differential treatment effects for boys and girls. → Metropolitan Area Child Study Research Group 2002
Evidence¶
Metropolitan Area Child Study Research Group 2002¶
Metropolitan Area Child Study Research Group. (2002). A Cognitive–Ecological Approach to Preventing Aggression in Urban Settings: Initial Outcomes for High-Risk Children. Journal of Consulting and Clinical Psychology. https://doi.org/10.1037/0022-006x.70.1.179
q3 · i1 · causal · r2
HLM analysis of the early intervention high-risk sample with gender as a Level 1 variable. The article reports a printed effect size of 0.27 SD: "boys increased significantly more in aggression than girls (effect size /H110050.27 SD, p /H11021.01)," with no differential treatment effects by gender.
"In the early intervention sample, boys increased significantly more in aggression than girls (effect size /H110050.27 SD, p /H11021.01). However, there were no differential treatment effects for boys and girls."
Discussion¶
Learner Variables¶
- Gender — moderator: an instructional effect differs by group
Related Claims¶
- Early comprehensive (Level C) intervention effects on high-risk children's aggression interacted with community type, decreasing aggression in Aurora but increasing it in Chicago — related
- For children receiving both early and late intervention, the Level C Community × Treatment interaction replicated: Aurora treated children decreased in aggression while Chicago treated children increased — related
- Prosocial behavior, aggression, and peer relationships are stratified along gender, ethnoracial, and socioeconomic lines — related
- Bullied boys show greater behavioral problems than bullied girls in withdrawn/depressed, social, thought, and aggression domains — related
- Early-delivered Level A (classroom-only) and Level B (classroom plus small-group) interventions showed no significant effects on high-risk children's aggression — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
gender-aggression-increase-no-treatment-difference |
title |
In the early intervention sample, boys increased more in aggression than girls, but intervention effects did not differ by gender |
description |
In the early intervention sample, boys increased more in aggression than girls, but intervention effects did not differ by gender |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2002 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — metropolitan-area-child-study-research-group-2002 |
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