This document provides a detailed outline of the scoring system of the IMPACT Measures Tool®. It includes a description of scoring categories and the research basis behind these categories. It also outlines scoring criteria and points by subcategory, which may be useful for measure developers and publishers, and others interested in a detailed breakdown of how points are assigned. For a more general overview of the IMPACT scoring system and the process for approaching each scoring category, please refer to our Scoring Guidebook. (author abstract)