# Tukey's Test of Additivity Calculator

Tukey's test of additivity is a statistical approach used in two way ANOVA to assess whether the factor variables are additively related to the expected value of the response variable. The test is named after John Tukey, an American mathematician best known for development of the FFT algorithm and box plot. Enter the matrix in this online Tukey's test of additivity calculator to determine the Tukey additivity obtained from anova tukey test.

## Tukey's Test of Additivity For Two way ANOVA Calculation

Tukey's test of additivity is a statistical approach used in two way ANOVA to assess whether the factor variables are additively related to the expected value of the response variable. The test is named after John Tukey, an American mathematician best known for development of the FFT algorithm and box plot. Enter the matrix in this online Tukey's test of additivity calculator to determine the Tukey additivity obtained from anova tukey test.

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The test statistic proposed by Tukey has one degree of freedom under the null hypothesis, hence this is often called 'Tukey's one-degree-of-freedom test.' This two way ANOVA approach calculation compares the mean differences between groups that have been split on two independent variables.