Saturated expansible-contractible 2nv designs

Abstract EN

Four saturated 2nv factorial designs belonging to Webb's [5] class of expansible-contractible 2n factorial designs are analyzed.

The analysis of each one of these designs includes the derivation of closed-form least squares estimates of the nonneglibible factorial effects as well as the derivation of the variance-convariance structure.

Each one of these four designs will also be carried out sequentially in nested expansible- contractible 2n fractions and at the conclusion of each experimentation stage, the linear estimable parametric functions of the nonneglibible effects are determined.