Basic Analysis > Contingency Analysis > Cochran-Mantel-Haenszel Test
Publication date: 08/13/2020

Cochran-Mantel-Haenszel Test

Note: See also Example of a Cochran Mantel Haenszel Test.

The Cochran-Mantel-Haenszel test discovers if there is a relationship between two categorical variables after blocking across a third classification.

Correlation of Scores

Applicable when both Y or X are ordinal or interval. The alternative hypothesis is that there is a linear association between Y and X in at least one level of the blocking variable.

Row Score by Col Categories

Applicable when Y is ordinal or interval. The alternative hypothesis is that, for at least one level of the blocking variable, the mean scores of the r rows are unequal.

Col Score by Row Categories

Applicable when X is ordinal or interval. The alternative hypothesis is that, for at least one level of the blocking variable, the mean scores of the c columns are unequal.

General Assoc. of Categories

Tests that for at least one level of the blocking variable, there is some type of association between X and Y.

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