Review feedback validation involves cross referencing the results of search with the calls made by attorneys during document review. The document level classification as relevant or privileged provides keen insight into refining the search and selection criteria or in identifying gaps that require additional analysis. This feedback will be used for additional analysis and to refine the Search Criteria sets. The feedback may identify categories of documents that are not yielding responsive documents and or could identify documents to be excluded from the review set. Also, the feedback may identify new categories of documents that should be included and the criteria will be broadened to include those documents in the review set.