© 2025 Vista Higher Learning Reading and Writing Growth with Vista’s Engage iii INTRODUCTION SEG Measurement conducted a study to find out how well Vista Higher Learning’s Engage with Literature and Content program helps high school multilingual learners (MLs) improve their English reading and writing skills. The study took place in six Arizona high schools during the 2024–2025 school year and included 171 students in grades 9–12. Students used Engage throughout the year as part of their English language instruction. Their reading and writing growth was measured using the Arizona English Language Learner Assessment (AZELLA) at the beginning and end of the school year. The results showed that students who learned with Engage made clear, measurable progress in both reading and writing. The program worked equally well for boys and girls and for students from di erent ethnic backgrounds, showing that it supports all learners. It was also especially e ective for students who began the year at the lowest proficiency levels, helping them make the greatest gains. This report includes three main parts: • An overview of the Engage program, the study design, and the research questions • A description of the data collected and how the analysis was conducted • The study results, conclusions, and what they mean for classroom practice Together, these findings show that Engage is an e ective, classroom-tested program that helps multilingual learners strengthen their reading and writing skills and build confidence as English users.
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