2015 QPRC

Designs of variable resolution robust to non-negligible two-factor interactions

Ryan Lekivetz, SAS Institute

Abstract: In some experimental situations, there is a natural grouping of factors. Prior knowledge may indicate that active two-factor interactions only occur within groups of factors. Designs of variable resolution (Lin, 2012) were introduced for such situations. However, main effects from one group in a design of variable resolution may be aliased with non-negligible two-factor interactions from another group. In this talk, we introduce robust designs of variable resolution which ensure main effects are robust to non-negligible interactions.