1.
Friesner DE, Peck LR. Comparison Group Identification for Difficult-to-Evaluate Populations: Lessons from Evaluating 1n10 LGBTQ Youth Support Services. J Multidiscip Eval [Internet]. 2007 Oct. 29 [cited 2026 May 3];4(8):16-39. Available from: https://jmde.journals.publicknowledgeproject.org/index.php/jmde_1/article/view/28