Benchmarking is a program evaluation approach that can be used to study whether the outcomes of parents/children who participate in an evidence-based program in the community approximate the outcomes found in randomized trials. This paper presents a case illustration using benchmarking methodology to examine a community implementation of Parent-Child Interaction Therapy (CI-PCIT) utilized as a child maltreatment prevention effort. Data were collected from 83 parent-child dyads. Change scores were compared to treatment and control effect sizes aggregated from the PCIT literature. Pre-post results indicated significant positive changes in child behavior for CI-PCIT completers. Benchmarking analyses revealed that parents who completed CI-PCIT reported significantly greater positive child outcomes than the aggregate control group benchmark, and significantly less than observed in the treatment benchmark. A summary of decision points and implications for utilizing this methodology in the child maltreatment field are postulated.