This research brief examines whether lower-income students who show high math achievement early in school are being identified and supported to sustain their success. The research addresses a broader concern that socioeconomic gaps in advanced learning opportunities may contribute to high-achieving, lower-income students falling off the path to advanced math, STEM education and careers.

This is the technical appendix to the research brief, Missing at the Top: Lower-income Students Underrepresented Among High Achievers, which examines whether lower-income students who show high math achievement early in school are being identified and supported to sustain their success.