The comparability of various assessments of literacy achievement and growth adopted for use by the Houston Independent School District (HISD) was the focus of this study. Renaissance 360 is the universal screener used by campuses throughout the district. In contrast, Benchmark Running Records (BRR) are campus-specific, and each campus is able to select which BRR to use. Although results from various BRRs are generally treated as comparable by the district, this study suggests the results from various BRRs may not always be comparable, and the district may want to use caution when comparing BRR results across campuses that use different BRR assessments.