Wave I & II School District Grouping Data
To facilitate clustering by school district, the school district identifiers comprising this file are based on the Local education agency identification numbers (LEAID) of the school districts in which the Wave I school, Wave I residence, and Wave II residence were situated. The first two characters of this LEAID represent state and reflect state codes assigned by Add Health in other disseminated data similarly intended for clustering at different geographic areas. N=84,166
This datafile has additional requirements for access, please read the requirements carefully before requesting. The requirements are listed on the CPC Data Portal.
Current Add Health investigators can log in to the CPC Data Portal and use the “Request More Data” button to order this dataset.
For more information on the CPC Data Portal, please visit the Frequently Asked Questions page.