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¶

Claim · All claims
Evidence · 1 study (4 entries) · causal r2 · q3 · i2 medium
Currency · newest study 2002 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? In the early intervention period, the Level C condition showed a significant Community × Treatment interaction on postintervention aggression. → Metropolitan Area Child Study Research Group 2002 q3 i2 In Aurora, early Level C treatment decreased aggression at posttest by a printed effect size of 0.59 standard deviation relative to control change. → Metropolitan Area Child Study Research Group 2002 (2) q3 i2 In Chicago inner-city schools, early Level C treatment increased aggression by a printed effect size of 0.42 standard deviation relative to control. → Metropolitan Area Child Study Research Group 2002 (3) q3 i? In Aurora, Level C children improved significantly more than Level A children, suggesting the family component was particularly relevant. → Metropolitan Area Child Study Research Group 2002 (4)

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 · i? · causal · r2

HLM analysis of the early intervention (Grades 2–3) high-risk sample, with schools as a random effect and pretest and gender as covariates. The article reports "a significant Community /H11003Treatment interaction on mean postintervention aggression, t(9) /H110054.02, p /H11021.004." No effect size is printed for the interaction itself.

"the analysis of Level C intervention showed a significant Community /H11003Treatment interaction on mean postintervention aggression, t(9) /H110054.02, p /H11021.004."

Metropolitan Area Child Study Research Group 2002 (2)¶

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 · i2 · causal · r2

HLM contrasts within communities in the early intervention sample. The treated Aurora youths' aggression decline was a printed effect size of 0.59 standard deviation (SD), "a 0.59 standard deviation greater than the change for control youths, t(9) /H110052.66, p /H11021.03."

"this intervention condition significantly decreased aggression at posttest for treated youths in communities with greater school and community resources (Aurora); a 0.59 standard deviation greater than the change for control youths, t(9) /H110052.66, p /H11021.03."

Metropolitan Area Child Study Research Group 2002 (3)¶

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 · i2 · causal · r2

Same early-intervention HLM analysis, inner-city Chicago schools. The article reports a printed effect size of 0.42 standard deviation (SD): the Level C treatment "increased aggression by 0.42 standard deviation compared with the control group, t(9) /H110052.98, p /H11021.02."

"in inner-city schools (Chicago), the Level C treatment increased aggression by 0.42 standard deviation compared with the control group, t(9) /H110052.98, p /H11021.02."

Metropolitan Area Child Study Research Group 2002 (4)¶

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 · i? · causal · r2

Supplementary Dunnett-style comparisons among conditions within communities. In Aurora, Level C children improved "significantly more than Level A children, t(9) /H110054.53, p /H11021.002," and marginally more than Level B children (p <.10). No effect size is printed for these contrasts.

"children who received the Level C intervention in Aurora had improved not only more than control children but also significantly more than Level A children, t(9) /H110054.53, p /H11021.002"

Discussion¶

Related Claims¶

• Clinical-significance analysis replicated the community interaction: Level C versus control differed significantly in Aurora and marginally in Chicago schools — 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
• In the early intervention sample, boys increased more in aggression than girls, but intervention effects did not differ by gender — related
• Late-delivered Level A and Level C interventions showed no detectable effect on high-risk children's aggression — related
• Late-elementary (Grades 5–6) small-group peer-skills training (Level B) was associated with higher posttest aggression than control among high-risk children — 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