The conventional wisdom in education circles is that U.S. schools are “resegregating” (see here and here for examples). The basis for these claims is usually some form of the following empirical statement: An increasing proportion of schools serve predominantly minority student populations (e.g., GAO 2016). In other words, there are more “segregated schools.”
Underlying the characterization of this finding as “resegregation” is one of the longstanding methodological debates in education and other fields today: How to measure segregation (Massey and Denton 1988). And, as is often the case with these debates, it’s not just about methodology, but also about larger conceptual issues. We might very casually address these important issues by posing a framing question: Is a school that serves 90-95 percent minority students necessarily a “segregated school?”
Most people would answer yes. And, putting aside the semantic distinction that it is students rather than schools that are segregated, they would be correct. But there is a lot of nuance here that is actually important.