Using a Two-Way ANOVA for the First Dependent Variable

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Using a Two-Way ANOVA for the First Dependent Variable

It is apparent that employing a two-way ANOVA to test the influence of the independent variables on the variable reflecting the percentage of the immunized people is inappropriate in this case. It appears likely that this variable was categorical, and consisted of two values (e.g., 0=not immunized, 1=immunized). However, a two-way ANOVA can only test the influence of two independent variables on one quantitative dependent variable (Warner, 2013). If this assumption is not satisfied, and the dependent variable is categorical, then a two-way ANOVA cannot be used; a logistic regression should be utilized instead (Field, 2013). Thus, the results of a two-way ANOVA in this case cannot be considered valid.

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