This document discusses different types of assessments used in the Response to Intervention (RtI) process. Universal screeners are given to all students to identify the bottom 20-25% who may need additional support. Diagnostic assessments are used to pinpoint specific areas of weakness for students in Tiers II and III. The document provides examples of universal screeners and diagnostic assessments used in the Shoreline School District, including DIBELS, SRI, CORE, QRI, and DRA tests. It also outlines the typical order of diagnostic assessments by grade level.