From: Investigating the relationship between predictability and imbalance in minimisation: a simulation study
One variable
Two variables
Three variables
Four variables
Two treatments
<1%
4 to 12%
6 to 17%
7 to 20%
Three treatments
2 to 8%
11 to 12%
10 to 17%
Four treatments
Maximum 4%
Maximum 9%
8 to 14%