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Publication date: 06/21/2023

MSA Design Structure

Use the MSA Design Structure section to define the MSA study structure. Click on a plus symbol for the list of factors to enter into your model. To specify a nested term, first enter the top level factor. Next, use the button below that factor to add nested factors. Click the button to the right of a cross symbol to cross factors. Factors that are not included in the structure specification are assumed to be crossed with all other factors.

Figure 26.8 MSA Design Structure Example 

MSA Design Structure Example

Tip: For a fully crossed design, click Make Design. If a structure is not defined, a fully crossed model is assumed.

For complex nesting structure, the factors are entered into the design using a hierarchical ordering. Factors nested within one factor enter before those nested within two factors.

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