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¶

Claim · All claims
Evidence · 1 study (3 entries) · causal r2 · q3 · i2–i3
Currency · newest study 2002 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? The Level C Condition × Community interaction found for the early intervention was replicated in the early-plus-late sample. → Metropolitan Area Child Study Research Group 2002 q3 i2 Aurora Level C children decreased in aggression from 1st-grade pretest to 6th-grade posttest (printed effect size 0.65 SD) while Aurora controls increased. → Metropolitan Area Child Study Research Group 2002 (2) q3 i3 Chicago Level C children increased in aggression (printed effect size 1.07 SD) while Chicago controls decreased. → Metropolitan Area Child Study Research Group 2002 (3)

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

Three-level HLM (time, person, school) on participants receiving both early and late intervention, with aggression measured at three time points. The article reports the interaction "was repli- cated, t(261) /H110054.47, p /H11021.001." No effect size is printed for the interaction.

"the Level C Condition /H11003Community inter- action that had been found for the early intervention was repli- cated, t(261) /H110054.47, p /H11021.001."

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

Within-community HLM contrast in the early-plus-late sample. Aurora treated children decreased while "the control children in Aurora increased, t(261) /H110052.15, p /H11021.04, effect size /H110050.65 SD" — a printed effect size of 0.65 SD.

"Children in Aurora who received the Level C intervention decreased in aggression from the 1st-grade pretest to the 6th-grade posttest, whereas the control children in Aurora increased, t(261) /H110052.15, p /H11021.04, effect size /H110050.65 SD."

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 · i3 · causal · r2

Within-community HLM contrast in the early-plus-late sample, inner-city Chicago. Treated children increased while controls decreased, with a printed effect size of 1.07 SD ("effect size /H110051.07 SD"), an unintended effect the abstract flags for the most distressed communities.

"in Chicago, children who received the Level C treatment increased in aggression from 1st-grade pretest to 6th-grade posttest, whereas control school children decreased in aggression, t(224) /H110054.55, p /H11021.001, effect size /H110051.07 SD."

Discussion¶

Related Claims¶

• Clinical-significance analysis replicated the community interaction: Level C versus control differed significantly in Aurora and marginally in Chicago schools — 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 — reports the opposite
• 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
• 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
• 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