PBL score advantages hold in both probationer and intern subgroups, with larger effects among probationers¶

Claim · All claims
Evidence · 1 study (2 entries) · quant-synthesis r2–r3 · q3 · i3 large
Currency · newest study 2018 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i3 Subgroup analysis showed significant knowledge-score differences for probationers (SMD = 1.32, 95% CI [0.67, 1.97]) and interns (SMD = 0.82, 95% CI [0.28, 1.36]). → Zhang Song 2018 q3 i3 Skill-score subgroups also favored PBL: probationers SMD = 2.45 (95% CI [1.36, 3.54]) and interns SMD = 1.56 (95% CI [0.86, 2.27]). → Zhang Song 2018 (2)

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

Subgroup analysis of the knowledge-score meta-analysis dividing students into probationer and intern subgroups; both showed statistically significant differences favoring PBL, with the printed SMDs and confidence intervals as quoted.

"The subgroup analysis also showed that a statistically significant difference in the probationer subgroup (SMD = 1.32, 95% CI [0.67, 1.97]) and the intern subgroup (SMD = 0.82, 95% CI [0.28, 1.36])."

Zhang Song 2018 (2)¶

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 · r2

Subgroup analysis of the skill-score meta-analysis by participant distribution; both probationer and intern subgroups showed statistically significant differences favoring PBL, with larger pooled effects among probationers.

"The results also showed a statistically significant difference in the probationer subgroup (SMD = 2.45, 95% CI [1.36, 3.54])[9,10,14,15,17,19–21] and intern subgroup (SMD = 1.56, 95% CI [0.86, 2.27])."

Discussion¶

Related Claims¶

• PBL's examination-score advantage holds across student majors, publication years, and class sizes, but heterogeneity remains high in all subgroups
• In the clinical medicine subgroup, PBL students' total examination scores were significantly higher than controls (Hedges' g = 2.086)
• PBL improves radiology skill (film reading) scores more strongly than theoretical scores (pooled SMD = 2.10) — related