Included RCT evidence is of generally low methodologic quality with high heterogeneity, limiting confidence in the PBL advantage¶

Claim · All claims
Evidence · 1 study · quant-synthesis r2 · q2
Currency · newest study 2019 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Although most included studies were designed as RCTs, 3 did not describe random sequence generation, none described allocation concealment or blinding, and results were highly heterogeneous. → Ma Yimei MM 2019

Evidence¶

Ma Yimei MM 2019¶

Ma Yimei MM, Lu Xiaoxi MD, Hayashi Shogo. (2019). The effectiveness of problem-based learning in pediatric medical education in China: A meta-analysis of randomized controlled trials. Medicine. https://doi.org/10.1097/MD.0000000000014052

q2 · i? · quant-synthesis · r2

Risk-of-bias assessment of the 12 included RCTs (Fig. 2) using Cochrane guidelines: "none of them described the allocation concealment or blinding methods", and the authors state the methodologic qualities were not high. All three outcomes showed I2 above 85%.

"Although most of the studies in this meta-analysis were designed as RCTs, there were still 3 studies that did not describe their methods for random sequence generation, and none of them described the allocation concealment or blinding methods."

Discussion¶

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