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ANOVA: Action To Take If Requirements For Test Not Met

Describe the requirements that must be met before an ANOVA test can be used. Discuss what the researcher should do if one of these requirements is not met.

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Describe the requirements that must be met before an ANOVA test can be used. Discuss what the researcher should do if one of these requirements is not met.

Answer:
Before the ANOVA test is performed, we must also see that the data satisfies the following three assumptions.

1. Randomness and independence
2. Normality
3. Homogeneity of variance

The first assumption, randomness and independence, must always be met because validity of any experiment depends on random sampling and/or randomization process. To avoid biases in the outcomes, it is essential that either the obtained samples of data be considered as randomly and independently drawn from ...

Solution Summary

The solution describes the requirements that must be met before an ANOVA test can be used. The solution discusses what the researcher should do if one of these requirements are not met.

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