When designing ANOVA models, a crossed design is used when every possible combination of the levels of different factors are applied to experimental units. A nested design is used when each level of one factor can only be combined with one level of another factor. This app demonstrates the differences between creating model designs for crossed and nested ANOVAs.
This app introduces the concept of ANCOVA focusing on interpreting interaction plots.
This app explores the assumptions that are needed for inferences in linear models such as ANOVA, ANCOVA, and models with blocking, random effects, and repeated measures.
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This app will help you explore Hasse diagrams as well as help you build your own.
This app is designed to explore how a one-way ANOVA behaves under differing samples sizes and null and alternative hypotheses. The app includes a matching game to test student understanding of the issues illustrated by the app.