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Analysis of Variance Designs by A. J. Guarino, Lawrence S. Meyers, Glenn Gamst

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Chapter Eleven Two-way within-subjects design

11.1 Combining two within-subjects factors

A two-way within-subjects design is one in which the levels of two within-subjects variables are combined factorially. Recall from Chapter 11 that within-subjects independent variables can be either time related or not. There are three possible combinations of types of within-subjects variables that can be represented in a two-way design: (a) both can be time independent, (b) one can be time independent and the other time based, and (c) both can be time based. This latter combination is not often found in the research literature; the other two are more common, and we provide illustrations of them here.

  • Both variables time independent: Students can be asked ...

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