Claims

Post-test Geography Achievement Test scores of the portfolio-assessment group were significantly higher than those of the discussion-method control group

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

q2 i? The experimental group's post-test mean (M=45.65; SD=12.86) was significantly different from the control group's post-test mean (M=10.37; SD=7.49), with the experimental group higher. → Ugodulunwa 2015

Evidence

Ugodulunwa 2015

Ugodulunwa, C., & Wakjissa, S. (2015). Use of Portfolio Assessment Technique in Teaching Map Sketching and Location in Secondary School Geography in Jos, Nigeria. Journal of Education and Practice, 6(17). https://eric.ed.gov/?id=EJ1079911

q2 · i? · causal · r1

Independent-samples t-test comparing post-test Geography Achievement Test scores of 49 portfolio-taught students with 52 discussion-method students after 12 weeks. The article reports "t (99) = 12.32, p < 0.05"; no effect size is printed.

"The mean score of experimental group on the posttest (M=45.65; SD=12.86) was significantly different from the posttest mean score of the control group (M=10.37; SD= 7.49); t (99) = 12.32, p < 0.05."

Discussion

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