An estimated 50 to 60% of children from typical families develop secure attachment relationships with their parents (Ainsworth, Blehar, Waters, & Wall, 1978; Van IJzendoorn & Kroonenberg, 1988); however, intervention research has focused primarily on interventions for high-risk clinical samples (Berlin, Zeanah, & Lieberman, 2008). In this project, the influence of a popular community-based parent-child program was assessed in a non-clinical sample of families. Families participating in a 10-week Parent-Child Mother Goose Program (n.d.) and families on the waitlist for the program were asked to complete questionnaires to assess parenting efficacy and satisfaction as well as parents' perception of their own and their child's attachment styles at the beginning of the program, the end of the program, and six months later. Mothers in the program group reported significantly more positive change in their reports of parenting efficacy over time and also reported significantly more change in their children's attachment category. Specifically, children in the program group were significantly more likely to be classified as secure over time (55% at T1 to 81% at T3) as compared to the waitlist participants (45% at T1 to 62% at T2). In this popular 10-week, community-based program, parents learned skills that continued to influence their relationship with their children six months after the conclusion of the program. (Contains 4 footnotes and 3 tables.)