Curriculum Associates' i-Ready is an adaptive diagnostic and individualized instructional tool that has been used in M-DCPS in the last few years. In addition, Curriculum Associates provides the District with results of their predictive model, which uses the students' outcomes on the Fall and Winter i-Ready diagnostic testing as well as the schoolwide percentages of students scoring proficient on the previous year's Florida Standards Assessments (FSA) in English Language Arts (ELA) and Mathematics to estimate the individual student probabilities scoring at every achievement level on the subsequent FSA ELA and Mathematics grades 3-8. Predictive Capability of i-Ready was first examined in June 2017 and described in the corresponding Research Brief. This Research Brief examines 2018-2019 i-Ready prediction data and their relationship with the 2018-2019 FSA outcomes in ELA and Mathematics. [For the corresponding Research Brief, "Exploring the i-Ready Predictive Capability," see ED598679.]