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What are the assumptions of ANOVA?
Posted May 19, 2022
Answer
The following assumptions are made when using ANOVA:
- Each group sample is randomly selected from a normally distributed population
- All samples are selected independently of each other
- All populations have a common variance
- The observations are sampled randomly and independently of each other within each sample
- Factor effects are additive
Additional resources
ANOVA and the variance homogeneity assumption: Exploring a better gatekeeper