3. Select a Fractional Factorial Design Given the large number of factors, a full factorial design would have required dozens of experiments, consuming time and resources.

Factorial EE was measured using a 16-activity-category method, published energy costs of activities and measured basal metabolic rate, before (FEE) and after (FEEadj) adjustment for EPOC and TEF ...

Tables of fractional factorial designs for factors with three or five quantitative levels are presented. Series B (Statistical Methodology) of the Journal of the Royal Statistical Society started out ...