It is increasingly recognized that many industrial and engineering experiments use split-plot or other multistratum structures. Much recent work has concentrated on finding optimum, or near-optimum, ...

In some experiments, treatments can be applied only to groups of experimental observations rather than separately to each observation. When there are two nested groupings of the observations on the ...

The treatment-design portion of fractionated two-level split-plot designs is associated with a subset of the 2 n-k fractional factorial designs. The concept of aberration is then extended to these ...

In this section we are interested in recognizing and understanding three other types of experimental designs. These are designs with subsampling, split plot designs, and repeated measures designs.

This is a replicated variety trial at Meigs Purdue Ag Center, Lafayette, IN. The experiment is in a split-plot design. Whole-plot is white vs. black plastic, sub-plot is fifteen varieties. Varieties ...