Chi-Square Test

Definition

A statistical test used to determine if there is a significant association between two categorical variables. It compares the observed frequencies with the expected frequencies under the assumption of independence.

Related terms

Degrees of Freedom: The number of categories minus one in a chi-square test.

Contingency Table: A table that displays the observed frequencies for each combination of categories in a chi-square test.

Null Hypothesis: The assumption that there is no association between the variables being tested in a chi-square test.