This evidence-based case study explores the impact of an 8-week parenting intervention among diverse parents with young children who attended an urban, community-based parent program. The case study consists of a group pretest/posttest design with the intervention program as the manipulation. As such, the community-based pilot program forms the case study rather than a clinical case. The unique benefits of an evidence-based case study approach are presented. Data analyses include correlations to examine relationships among variables at Time 1 and at Time 2 and within-subjects t tests to analyze differences between participants’ responses pre- and postintervention participation for variables that reflect parenting style, parenting competence, and the experience of being the parent of a baby. Results indicate 2 significant subscale changes (i.e., Life Change and Centrality) between Time 1 and Time 2. Changes are thought to indicate a shift toward positive parenting. The study concludes with an application of the parenting research partnership model to the evidence-based case study approach.