Definition:

A discrete variable is a data item that has only a certain number of values and so does not have an infinite number values. From an A/B testing perspective you might use discrete variables such as user type or behavioural segments for analysis purposes. See also Continuous variables.

Resources:

Conversion marketing – Glossary of Conversion Marketing.

Over 300 tools reviewed – Digital Marketing Toolbox.

A/B testing software – Which A/B testing tool should you choose?