Students of all ethnicities benefit from ethnically diverse middle schools. More than half of school-age youth in the United States are members of ethnic minority groups, yet the nation's public schools are becoming less ethnically diverse. Recognizing these conflicting trends and the lack of research on the effects of ethnic diversity, a new study sought to determine how the diversity of middle school students and classrooms shapes students' self-reported well-being and their views on race. Source 4z.