A diagonal line in the table will not reflect a relationship when

Question

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A diagonal line in a table usually reflects a relationship between two variables, but when the variable is at the nominal level and there are more than two independent variable categories, it does not reflect a relationship. This is because the diagonal line reflects comparisons between the same category on both the independent and dependent variables, which is not meaningful when there are more than two categories on the independent variable. Percentaging the table, having more than 2 values for an independent variable or dependent variable do not affect the presence or absence of a diagonal line.

A Diagonal Line in the Table Will Not Reflect a Relationship