This document provides provides the quantitative data from a study of writing center tutor expertise conducted by Lucy Malenke, Laura (Schubert) Miller, and Jared Featherstone in the James Madison University Writing Center. Thi study sought to answer the question: Do clients who work with tutors trained in the genre of literature reviews improve their drafts more or revise their drafts differently than clients who work with generalist tutors? All 15 participants in the study attended a writing center consultation with their literature review drafts; eight worked with genre-trained tutors, and seven worked with generalist tutors. Their pre- and post-session literature review drafts were then blindly rated by the researchers. Discrepancies in scores were resolved via discussion. This document includes mean and median scores for individual traits, aggregate scores, and p-values and effect sizes for data collected from each group.