Judkins, David, Emily Roessel, and Gabriel Durham (2022). Appendices for PACE six-year impact reports, OPRE Report #2022-69, Washington, DC: Office of Planning, Research, and Evaluation, Administration for Children and Families, U.S. Department of Health and Human Services. Available at https://www.acf.hhs.gov/sites/default/files/documents/opre/pace%20six-year%20impact%20report%20technical%20appendix%2003-2022.pdf