Friesner, D.E. and Peck, L.R. 2007. Comparison Group Identification for Difficult-to-Evaluate Populations: Lessons from Evaluating 1n10 LGBTQ Youth Support Services. Journal of MultiDisciplinary Evaluation. 4, 8 (Oct. 2007), 16–39. DOI:https://doi.org/10.56645/jmde.v4i8.28.