The National Implementation Research Center (NIRN) will partner with Rivet Education to design and conduct an empirical evaluation of the Scoring & Evidence Guide (SEG)’s reliability and validity. The free and public-facing SEG is an evidence-based framework and rubric that serves as the basis for Rivet's reviews of providers. It evaluates the extent to which providers have expertise in content and specific high-quality instructional materials implementation (HQIM), as defined as "green" on EdReports, the extent to which they design professional learning that meets overarching and type-specific indicators of quality, and the extent to which they collect data about the effectiveness of their services and use those data to improve their services.