The pooled PBL advantage on DREEM was robust in sensitivity analyses excluding the largest, heaviest, and smallest studies¶

Claim · All claims
Evidence · 1 study · quant-synthesis r2 · q3
Currency · newest study 2016 · checked against its sources 2026-11-01 (automated, 1 of 1 entry) · not reviewed by a person

Subclaims¶

q3 i? Excluding the study with the largest weight, the largest sample, or the smallest sample each left a pooled effect still favoring PBL (e.g., WMD 10.01, 95% CI 6.44–13.58, p < 0.00001). → Qin Yongjie 2016

Evidence¶

Qin Yongjie 2016¶

Qin Yongjie, Wang Yungui, Floden Robert E. (2016). The Effect of Problem-Based Learning on Improvement of the Medical Educational Environment: A Systematic Review and Meta-Analysis. Medical Principles and Practice. https://doi.org/10.1159/000449036

q3 · i? · quant-synthesis · r2

Sensitivity analysis addressing the moderate heterogeneity: the pooled estimate was recalculated after excluding the heaviest-weight study, the largest-sample study (WMD 9.62), and the smallest-sample study (WMD 9.14), each remaining significant for PBL. The authors conclude the reanalyses "did not yield results different from those in the the primary analysis".

"After excluding the study in which the weight was largest [26], the pooled effect size was in favor of the PBL group (WMD 10.01, 95% CI 6.44–13.58, p < 0.00001)"

Discussion¶

Related Claims¶

• PBL is associated with higher overall DREEM medical educational environment scores than LBL in randomized trials — related
• PBL outperformed LBL on all five DREEM subscales, including perceptions of teachers and social self-perceptions — related