Question: About how many participants do you need in each cell for 80% power in each of the following planned studies, using the analysis of variance

About how many participants do you need in each cell for 80% power in each of the following planned studies, using the analysis of variance with p

Predicted Effect Size Small Small Medium Small Small Small Design 22 22 22 23 23 23 Effect Main effect Interaction effect Main effect Two-level main effect Three-level main effect Interaction effect

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