Student-level enrollment and home addresses: SY2013-14 through SY2018-19 OSSE Audited Enrollment. The following audited enrollment business rules were applied to the audited enrollment files for SY17-18 and SY18-19: 1) The universe of DCPS students include audited UPSFF residents + Non-resident tuition paying + Residency unverified and 2) The universe of public charter students include audited UPSFF residents. Student level data was geocoded by the Office of the Chief Technology Officer with all District-appropriate neighborhood geographies and DCPS boundary rights from the Electronic Boundary Information Rights appended to each student. Home addresses reflect students’ residences provided at the time of registration. Registration can occur between the spring prior to the start of the school year up until the enrollment audit, approximately October 5th of the current school year.
Distance to school: The DME calculated the distance between students’ addresses per the audited enrollment file and where they attended school at the facility level as of the audited enrollment file. Distances were calculated using ArcGIS’s geo-spatial network analyst tool that takes into account Washington, DC’s streets and walkways provided by the DC Office of Planning. The file excludes non geocoded students or those students that could not be assigned a ward or neighborhood cluster.
School facility addresses: School facility addresses were verified with District of Columbia Public Schools and the DC Public Charter School Board. School facility addresses were geocoded by the Office of the Chief Technology Officer with all District-appropriate neighborhood geographies included. The DME related the OSSE Audited Enrollment, SY2013-14 through SY2018-19, to individual facilities based on grades served. In instances where multiple facilities served the same school’s grade configurations then the distance to the facility with the highest enrollment was used.