Adult participation at the Early Childhood Research Center (ECRC) of the State University of New York at Buffalo is described in this paper. Five different programs serving families with infants, toddlers, and children 3 and 4 years old are briefly described to illustrate the complexity of program coordination at ECRC. The roles of staff teaching, students, undergraduate researchers, community parents, other professionals, and adult participants are discussed in terms of four processes: selection of teaching staff, scheduling of participants, training/development benefits to participants, and formal and informal program evaluation/monitoring activities conducted by participants for program improvement. Appended diagrams illustrate contributions from adult participants and benefits to those who participate in the programs. (RH)