Similarities and differences in predictors of retention/attendance patterns between African American and Hispanic parent participants (N = 143) from a family-focused preventive intervention were examined. Three broad retention pattern groups, nonattenders, variable attenders, and consistent high attenders, and 2 subgroups of the variable attendance group, decreasing low attenders and decreasing high attenders, were identified. In subgroup analyses, 3 significant discriminant functions were evident: 1 function classified Hispanic parents' retention patterns using sociodemographic indicators (e.g., educational attainment, household income) and 2 functions discriminated Hispanic and African American parents' patterns using family-level predictors (e.g., multiple caregivers attending the intervention, perceived barriers to participation). Implications are discussed in terms of strategies for improving methods of retaining participants in family-centered interventions conducted with ethnic minority families.