In recent years, there has been increasing interest in the study of asymmetrical fractional factorial designs. Various new optimality criteria have been proposed from different principles for design ...

Effect of Breast Magnetic Resonance Imaging on the Clinical Management of Women With Early-Stage Breast Carcinoma PURPOSE: Factorial designs may be proposed to test extra questions within a clinical ...

Experimentation is a vital part of the scientific method. Most problems in science require observation of the system at work and experimentation to elucidate information about how the system works. In ...

In unreplicated 2 k-p designs, the assumption of constant variance is commonly made. When the variance of the response differs between the two levels of a column in the effect matrix, that column ...