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Table 3 Predictability of permuted block design (PBD) and big stick design (BSD) for different values of maximum tolerated imbalance (MTI)

From: A roadmap to using randomization in clinical trials

MTI Proportion of Deterministic Assignments Excess Correct Guess
Probability
PBD BSD PBD BSD
1 50% 50% 25% 25%
2 33.3% 25% 20.8% 12.5%
3 25% 16.7% 18.3% 8.3%