What is more appropriate, considering the segregation by socioeconomic level of the families or by studies of the parents?

This question is answered by F. Javier Murillo (Coord. Of GICE) and Raquel Graña in their paper published in the monograph issue on School Segregation of REICE. Ibero-American Journal on Quality, Effectiveness and Change in Education

Murillo, F. J. & Graña, R. (2020). ¿Segregación escolar por nivel socioeconómico o por nivel de estudios de los padres? [School segregation by socioeconomic status or by parental education?]. REICE. Revista Iberoamericana sobre Calidad, Eficacia y Cambio en Educación, 18(4),  9-29.