Families and communities deserve to know whether their local schools are serving the needs of every student. Without access to disaggregated data – information about student performance broken down by different student groups – that is easy to access and interpret, families and parents can’t understand how different groups of students are being served or act on that information. This brief from DQC, Learning Heroes and National PTA underscores that disaggregated data is key to identifying opportunity gaps and confronting persistent barriers to student success – and provides information for state leaders as they make sure that families have the data they deserve to ensure that their students get a high-quality, equitable education.