Source: Boston University. Multivariable Methods module.
How to access: This is accessible from the link above (free).
Contents: This is one of the sections in Multivariable Method module. This section covers the Cochran-Mantel-Haenszel Method.
Example(s) used in this: Obesity and incidence of cardiovascular disease.
Prior math/stat knowledge to fully understand materials: Risk ratio, Odd ratio