Multivariate Testing Multivariate Testing is a technique used to test multiple variables simultaneously to determine which combination of changes produces the best result.Related TermsA/B TestingConversion OptimizationUsability TestingSplit TestingHow is Multivariate Testing different from A/B Testing?Unlike A/B Testing, which tests two versions of a single variable, Multivariate Testing tests multiple variables at the same time to find the best combination.