Claims

Control and experimental groups were equivalent at pre-test but differed significantly at post-test in mathematics achievement

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 2012 · 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? Pre-test scores showed no significant difference between groups, while post-test scores showed a significant difference favouring the experimental group. → K. Thiyagu 2012

Evidence

K. Thiyagu 2012

K. Thiyagu. (2012). Effectiveness of Co-operative Learning Method in Learning of Mathematics among Eighth Standard Students. i-manager's Journal on Educational Psychology, Vol. 5 No. 4, February - April 2012. https://eric.ed.gov/?id=EJ1102329

q2 · i? · causal · r1

Pre/post comparison in the same quasi-experiment (N=20 per group). Table 3 reports pre-test means 8.85 vs 8.53 (t = 0.33, Not Sig.) and post-test means 15.31 vs 18.46 (t = 3.83, Sig.) at the 5% level.

"It is inferred from Table 3 that there is no significant difference between Pre-test scores of control group and experimental group students. But there is significant difference between Post-test scores of control group students and experimental group students."

Discussion

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