Table 2 Simulated standard deviation of absolute overall imbalance \(SD\left|D(n)\right|\) for 16 randomization designs under Scenarios 1–4
Randomization design | Scenario 1 | Scenario 2 | Scenario 3 | Scenario 4 |
|---|---|---|---|---|
U-PBD \((b)\) | 0.00 | 0.00 | 0.00 | 1.10 |
U-BUD \((b)\) | 0.95 | 0.94 | 0.94 | 1.14 |
U-EUD \((b)\) | 0.86 | 0.85 | 0.86 | 1.05 |
U-BSD \((b)\) | 1.00 | 1.00 | 1.00 | 1.40 |
R-PBDÂ \((b)\) | 1.40 | 1.39 | 1.38 | 1.80 |
R-BUD \((b)\) | 1.57 | 1.58 | 1.58 | 2.30 |
R-EUD \((b)\) | 1.49 | 1.48 | 1.49 | 2.00 |
R-BSD \((b)\) | 1.76 | 1.76 | 1.72 | 3.19 |
C-PBD \((b)\) | 4.97 | 4.83 | 6.56 | 6.41 |
C-BUD \((b)\) | 5.93 | 5.46 | 7.29 | 7.58 |
C-EUD \((b)\) | 5.41 | 5.13 | 6.62 | 6.62 |
C-BSD \((b)\) | 6.76 | 6.16 | 8.09 | 10.06 |
DBR(\(b, b, b\)) | 1.07 | 1.06 | 1.06 | 1.42 |
DBR(\(b,2b,2b\)) | 1.45 | 1.43 | 1.45 | 2.41 |
DBR(\(b,2b,4b\)) | 2.32 | 2.29 | 2.35 | 4.34 |
CRD | 13.43 | 13.37 | 13.54 | 13.47 |