This compendium includes over 60 research studies focused on the Common Core State Standards, and encompasses research from multiple sources, such as government entities, independent organizations, and peer-reviewed publications from academic journals and other outlets. For each study in the compendium, which have been categorized across nine topic areas, a short summary is provided as well as a URL link to the original research (when possible). The compendium is presented below both as a single document as well as individual PDFs of the nine topic areas. The compendium will be updated regularly as the body of CCSS-related research grows. Last up-dated on August 6, 2014. - See more at: http://www.cep-dc.org/displayDocument.cfm?DocumentID=438#sthash.u2UxGAt8.dpuf