Definition:
A positive interaction occurs in a multivariate test when two or more variables generate an interdependent improvement in the dependent (or output) variables.
Resources:
Conversion marketing – Glossary of Conversion Marketing.
Over 300 tools reviewed – Digital Marketing Toolbox.
A/B testing software – Which A/B testing tools should you choose?
Types of A/B tests – How to optimise your website’s performance using A/B testing.