SBI effects on proportional problem solving are maintained on a delayed posttest administered 9 weeks after intervention¶
Claim · All claims
Evidence · 1 study · causalr3·q4
Currency · newest study 2015 · 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 i? SBI students maintained their advantage over control students on the PPS delayed posttest given 9 weeks after the intervention ended. → Jitendra 2015
Evidence¶
Jitendra 2015¶
Jitendra, A. K., Harwell, M. R., Dupuis, D. N., Karl, S. R., Lein, A. E., Simonson, G., & Slater, S. C. (2015). Effects of a research-based intervention to improve seventh-grade students’ proportional problem solving: A cluster randomized trial. Journal of Educational Psychology. https://doi.org/10.1037/edu0000039
q4 · i? · causal · r3
The abstract reports that "the SBI group scored on average significantly higher than the control group on the posttest and retention test (9 weeks later)". The delayed posttest ICC was .18 (p < .001), with 18% of variance between classrooms.
"the SBI group scored on average significantly higher than the control group on the posttest and retention test (9 weeks later) and also showed significantly more growth in proportional problem solving"
Discussion¶
Learner Variables¶
- Problem Solving — outcome: instruction changes it
Related Claims¶
- SBI produces significantly more growth in proportional problem solving over time than business-as-usual instruction — related
- Schema-based instruction significantly improves seventh-grade students' proportional problem solving at posttest compared with business-as-usual instruction — related
- SBI gains in proportional problem-solving are maintained 9 weeks after the intervention for students with MD-PS — possibly the same claim (merge candidate)
- SBI effects for students with MD-PS hold for ratio and proportion problems at both time points but for percent problems only at immediate posttest — related
- SBI did not moderate student growth over time in proportional problem solving for students with MD-PS — related
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