Abstract
When a variety is lost or omitted from a balanced incomplete block design, the residual design is not, in general, balanced. A lower bound is obtained for the overall efficiency in this case and it is shown that the overall loss of efficiency even in the unbalanced case is small.
Citation
Peter W. M. John. "Robustness of Balanced Incomplete Block Designs." Ann. Statist. 4 (5) 960 - 962, September, 1976. https://doi.org/10.1214/aos/1176343593
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