GraphPad Statistics Guide

How to: Two-way ANOVA

How to: Two-way ANOVA

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How to: Two-way ANOVA

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Two-way ANOVA, also called two-factor ANOVA, determines how a response is affected by two factors. For example, you might measure a response to three different drugs in both men and women. In this example, drug treatment is one factor and gender is the other.

A note of caution for statistical novices

Deciding which factor defines rows and which defines columns?

Entering data for two-way ANOVA

Entering repeated measures data

Missing values and two-way ANOVA

Point of confusion: ANOVA with a quantitative factor

Experimental design tab: Two-way ANOVA

Multiple comparisons tab: Two-way ANOVA

Options tab: Two-way ANOVA

Summary of multiple comparisons available (two-way)

Q&A: Two-way ANOVA