Incremental Validity is used to determine if a new psychological measure will provide more information than measures that are already in use. If a new test doesn't provide any new information tha [..]

The extent to which a new assessment adds to the prediction of job success above and beyond the forecasting powers of an existing assessment.

Incremental validity is a type of validity that is used to determine whether a new psychometric assessment will increase the predictive ability beyond that provided by an existing method of assessment [..]