Claims

PBL improves theoretical knowledge scores in Chinese radiology education compared with traditional teaching (pooled SMD = 1.20)

Claim · All claims
Evidence · 1 study · quant-synthesis r3 · q3 · i3 large
Currency · newest study 2018 · checked against its sources 2026-11-01 (automated, 1 of 1 entry) · 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 i3 Pooled analysis of 16 studies (1455 students) showed a significant difference in knowledge scores in favor of PBL over traditional teaching (SMD = 1.20, 95% CI [0.68, 1.71]). → Zhang Song 2018

Evidence

Zhang Song 2018

Zhang Song, Xu Jiancheng, Wang Hongwei, Zhang Dong, Zhang Qichuan, Zou Liguang. (2018). Effects of problem-based learning in Chinese radiology education: A systematic review and meta-analysis. Medicine. https://doi.org/10.1097/MD.0000000000010069

q3 · i3 · quant-synthesis · r3

Meta-analysis of 16 controlled studies involving 1455 medical students (PBL group = 727, control group = 728), pooled with a random-effects model because of high heterogeneity (I2 = 95%, P < .00001). The pooled estimate showed "a significant difference in knowledge scores" favoring PBL.

"The analytical results showed a significant difference in knowledge scores (SMD = 1.20, 95% CI [0.68, 1.71]) in favor of PBL, compared with the traditional teaching"

Discussion

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