How much do public schools and private schools contribute to school segregation in Spain?

Murillo, F. J., Belavi, G. y Pinilla, L. M. (2018). Segregación escolar público-privada en España. Papers. Revista de Sociología, 103(3).

More than 30 years ago, the double network of private and public schools was regulated in Spain. Today is time to inquire into what this has meant in terms of equity. This article addresses the differential contribution of public and private education to socioeconomic school segregation. It aims to estimate the magnitude of segregation by socioeconomic status in public and private compulsory secondary education schools and determine the contribution of both to global segregation in autonomous communities. For this purpose, a secondary analysis of PISA-2015 data was performed and the Hutchens square root segregation index and its decomposition in the public and private education subsystems were estimated for four groups of students: 10% and 25% of students from families with a lower socioeconomic status and 10% and 25% of students from families with a higher socioeconomic status. The results reveal a high variability in school segregation between communities in terms of both magnitude and public-private distribution. Secondly, a significant segregation of students with lower socioeconomic and cultural status at private schools and students with higher socioeconomic and cultural status at public schools was found. The results reveal the important contribution of private schools to global segrega-tion by socioeconomic status.