Specify the design options for Create Definitive Screening Design

Stat > DOE > Screening > Create Screening Design > Options

Select whether Minitab randomizes the run order within each block or leaves the design in standard order. Randomization reduces the chances of confounding between the effects of factors in your study with the effects of factors that are not in the study, particularly effects that are time-dependent.

Sometimes, you do not want to randomize the design because factor levels are difficult or expensive to change. Instead, you may want use a split-plot design to minimize the factor level changes. For more information on split-plot designs, go to Split-plot designs in design of experiments.

Base for random data generator
Specify a base for the random data generator so that you can obtain the same random order when you create another design. When you enter the same base, the run order is the same.

After the design is in the worksheet, you can change how you view the design and re-randomize the design. To view a design in standard order or run order, use Display Design. To randomize or re-randomize a design, use Modify Design. For more information, go to Overview for Display Design and Modify Design.

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