Claims

GEMS education produced a large post-test advantage on the Material Usage Problems subscale (d = 1.77)

Claim · All claims
Evidence · 1 study · causal r1 · q2 · i3 large
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.

q2 i3 Post-test Material Usage Problems subscale scores differed significantly between groups (t = -4.4, p = .000, Cohen's d = 1.77), favoring the experimental group. → Unal 2018

Evidence

Unal 2018

Unal, M., & Saglam, M. (2018). Examination of the effect of the GEMS program on problem solving and science process skills of 6 years old children. European Journal of Educational Research, 7(3), 567-581. https://doi.org/10.12973/eu-jer.7.3.567

q2 · i3 · causal · r1

Independent samples t test on post-test Material Usage Problems subscale of the PSSSE in the same 25-child pre-test/post-test control group study; the table prints t = -4.4, p = .000, Cohen's d = 1.77, with experimental mean 2.51 vs control 2.14.

"MUP Experimental 11 2.51 2.42 2.14 2.86 .16 Control 14 2.14 2.14 1.86 2.43 .21 -4.4 .000* 1.77"

Discussion

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