Claims

PTR-YC reduces preschool children's problem behavior more than business-as-usual, as measured by the SSIS problem behavior subscale

Claim · All claims
Evidence · 1 study · causal r2 · q4 · i2 medium
Currency · newest study 2018 · 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.

q4 i2 In an RCT, the PTR-YC group showed a significantly greater pre-to-post reduction in SSIS problem behavior scores than the BAU group, with a small interaction effect. → Glen Dunlap 2018

Evidence

Glen Dunlap 2018

Glen Dunlap, Phillip Strain, Janice K. Lee, Jaclyn Joseph, and Nancy Leech. (2018). A Randomized Controlled Evaluation of Prevent-Teach-Reinforce for Young Children. Topics in Early Childhood Special Education. https://doi.org/10.1177/0271121417724874

q4 · i2 · causal · r2

Randomized controlled trial with classroom-level randomization; 169 children in pre-K and Head Start classrooms in two western US states. Mixed ANOVA on SSIS problem behavior showed a significant time-by-group interaction, "F(1, 156) = 10.40, p = .002", with ηp² = .062; posttest means were 27.80 (PTR-YC) vs 29.37 (BAU).

"Comparing study groups on the SSIS problem behavior index revealed a statistically significant interaction effect between time and group, F(1, 156) = 10.40, p = .002. The statistically significant interaction represented a small effect size ( ηp 2 = .062)."

Discussion

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