M. Jacroux et al., ON THE DETERMINATION AND CONSTRUCTION OF OPTIMAL BLOCK-DESIGNS IN THEPRESENCE OF LINEAR TRENDS, Journal of the American Statistical Association, 92(437), 1997, pp. 375-382
This article considers experimental situations in which upsilon treatm
ents are to be applied to experimental units arranged in b blocks of s
ize Ic and where there may be unknown or uncontrollable linear trends
(possibly different) within blocks.; Methods are given for determining
and constructing universally optimal designs for such situations.