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One Way vs Two Way ANOVA + Factorial ANOVA: A Comparison in one Picture

ANOVA is a test to see if there are differences between groups. Put simply, "One-way" or "two-way" refers to the number of independent variables (IVs) in your test. However, there are other subtle differences between the tests, and the more general factorial ANOVA. This picture sums up the differences.

Further Reading

What are Levels?

ANOVA Test

Factorial ANOVA

References

Choosing the Correct Test

Stats: Two Way ANOVA

Statistical notes for clinical researchers: Two-way analysis of var...

Factorial ANOVA: Higher order ANOVAs

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