Source: wikibot/cochran-mantel-haenszel-statistics
= Cochran–Mantel–Haenszel statistics
{wiki=Cochran–Mantel–Haenszel_statistics}
The Cochran–Mantel–Haenszel (CMH) statistics refer to a family of statistical methods used to analyze stratified categorical data. These methods are particularly useful when researchers want to examine the association between two categorical variables while controlling for the potential influence of one or more additional categorical variables (strata).