Table 2 Quality of studies (N = 28) based on MERSQI
From: Flipped classroom improves student learning in health professions education: a meta-analysis
Scale item (max. points) | Subscale (points if present) | No. (%) present |
|---|---|---|
Study design (max. 3) | Non-randomized 2-group (2) | 24 (86) |
Randomized 2-group (3) | 4 (14) | |
Sampling: no. of institutions (max. 1.5) | 1(0.5) | 26 (93) |
2 (1) | 1 (3.5) | |
3 (1.5) | 1 (3.5) | |
aSampling: response rate (max. 1.5) | <  50% or not reported (0.5) | 5 (17) |
50%–74% (1) (1) | 1 (3.5) | |
≥75% (1.5) | 22 (79) | |
Type of data: outcome assessment (max. 3) | Objective (3) | 28 (100) |
Validity evidence (max. 3) | Content (1) | 28 (100) |
Data analysis: appropriate (max. 1) | Appropriate (1) | 28 (100) |
Data analysis: sophistication (max. 2) | Beyond descriptive analysis (2) | 28 (100) |
Highest outcome type (max. 3) | Knowledge, skills (1.5) | 28 (100) |