Claims

Effect sizes of PBL on science achievement differ significantly by publication type, with conference proceedings showing a negative effect

Claim · All claims
Evidence · 1 study · quant-synthesis 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? Between-group heterogeneity of effect sizes differed significantly by publication type (Q = 28.161, p < 0.05), with articles (1.130), doctoral theses (1.031), and master's theses (0.982) ranking highest and conference proceedings negative (g = −0.136). → Ufuk Uluçınar 2022

Evidence

Ufuk Uluçınar 2022

Ufuk Uluçınar. (2022). The Effect of Problem-Based Learning in Science Education on Academic Achievement: A Meta-Analytical Study. Science Education International, 34(2), 72-85. https://doi.org/10.33828/sei.v34.i2.1

q3 · i? · quant-synthesis · r3

Moderator analysis by publication type across the 55 datasets (random effects model): 2 conference papers, 21 articles, 20 master's theses, 12 doctoral dissertations; between-group heterogeneity Q = 28.161, p < 0.05. Conference proceedings effect was "significant and in the negative direction".

"it has been found that the effect of PBL practices on science academic achievement was significant and in the negative direction in conference proceedings (Hedges’s g = −0.136)."

Discussion

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