Claims

TRIAD's pre-K and follow-through effects show no persistent impact on the full sample in children's fourth-grade year

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 2013 · 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 i? Neither the follow-through (FT) nor the no-follow-through (nFT) TRIAD condition showed a persistent impact on fourth-grade mathematics achievement relative to the original control group at either fall or spring assessment. → Douglas H. Clements 2013

Evidence

Douglas H. Clements 2013

Douglas H. Clements, Julie Sarama, Carolyn Layzer, Fatih Unlu, Christopher B. Wolfe, Mary Elaine Spitler. (2013). Longitudinal evaluation of a scale-up model for teaching mathematics with trajectories and technologies: Persistence of effects three years after the treatment. SREE Spring 2013 Conference Abstract. https://eric.ed.gov/?id=ED563385

q3 · i? · causal · r2

Two-level cross-sectional HLMs (students nested in schools) estimated separately for Fall 2011 and Spring 2012 REMA 3-5 data from the cluster-randomized trial of 106 pre-K classrooms. Impact estimates were small and non-significant: FT vs CTRL .047 (p=.80) Fall and -.035 (p=.79) Spring; nFT vs CTRL -.089 (p=.62) and -.081 (p=.52). No standardized effect size beyond these impact estimates is printed.

"Table 1 suggests that there is no persistent impact of FT or nFT (when compared with students placed in the control group originally) at either time point."

Discussion

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