The Pasos Adelante Project is a substance abuse prevention program in Tucson, Arizona. This study looked at changes in family cohesion, family expression, and family conflict as a result of participation in this program at three different agencies. The analyses showed that differences in gains in family expression and reduction in family conflict distinguished groups of parents participating at different sites. One agency (which served clients from a higher socioeconomic status) appeared to have the largest reported gains in family expression and largest reduction in family conflict. (JE)