Claims

Individual study effect sizes ranged from 0.010 to 2.031, with two studies exceeding 2.00, and the forest plot shows a difference greater than zero in favour of the experimental group

Claim · All claims
Evidence · 1 study (2 entries) · quant-synthesis r2–r3 · q3
Currency · newest study 2022 · 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? The standardized effect sizes of the 66 studies varied between 0.010 and 2.031, with confidence intervals between -0.444 and 1.238, and only two studies (İnan & Erkuş, 2017; Yi & Eu, 2016) exceeded 2.00. → Hakan Ulum 2022 q3 i? The forest plot of the 66 studies shows a difference greater than zero in favour of the experimental group. → Hakan Ulum 2022 (2)

Evidence

Hakan Ulum 2022

Hakan Ulum, Songül Tümkaya. (2022). The effect of student-centred methods and techniques on primary school students' mathematics achievement: A meta-analysis study. Malikussaleh Journal of Mathematics Learning (MJML). https://ojs.unimal.ac.id/mjml/index

q3 · i? · quant-synthesis · r3

Descriptive distribution of the 66 standardized effect sizes included in the meta-analysis, ranked from small to large. The article notes the effect size "will be less than 2.00 but above zero, except for two studies (İnan & Erkuş, 2017; Yi & Eu, 2016)".

"The standardized effect sizes of 66 studies vary between 0 .010 and 2. 031 values, while the confidence interval varies between -0.444 and 1.238 (See appendix 1)."

Hakan Ulum 2022 (2)

Hakan Ulum, Songül Tümkaya. (2022). The effect of student-centred methods and techniques on primary school students' mathematics achievement: A meta-analysis study. Malikussaleh Journal of Mathematics Learning (MJML). https://ojs.unimal.ac.id/mjml/index

q3 · i? · quant-synthesis · r2

Graph 2 presents the forest plot of the 66 studies collectively. The article reports that analysis of the plot shows a difference greater than zero favouring the experimental group, with two outlier studies above 2.00.

"When Graph 2 is analysed, it is seen that t here is a g reater than zero difference in favour of the experimental group."

Discussion

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