Positive perceptions of school climate correlate with many dimensions of academic well-being and student health. Unfortunately, some existing research finds more favorable perceptions in middle school for general education students (GENs) than for students with disabilities (SWDs). Given the importance of ninth grade to student success, it is…

Across the country and in urban areas in particular, many students change schools during the academic year. While much research documents the impact of changing schools on the academic achievement of mobile students themselves, less research explores whether new arrivals have negative spillovers on stable classmates. The lack of research on…