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Test of Independence. Chi-square tests that involve two variables are called a test of independence Tests of independence determine whether one variable is related to another variable It is similar to the interaction term of a factorial ANOVA Example of a test of independence.
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Test of Independence • Chi-square tests that involve two variables are called a test of independence • Tests of independence determine whether one variable is related to another variable • It is similar to the interaction term of a factorial ANOVA • Example of a test of independence
Formula for Chi-square • Tests of independence use a formula that is similar to the goodness of fit test • This formula is applied to each possible combination of groups across the independent variables