This paper examines the correlates and consequences of participation i
n professionally-organized parent groups for 150 mothers receiving ear
ly intervention services for their infants and toddlers with disabilit
ies. Results revealed that participants in parent groups had higher ed
ucational levels than nonparticipants and reported larger increases in
the size and helpfulness of their social support networks. Intensity
of participation in patient groups, however, was associated with both
positive and negative outcomes for maternal functioning and social sup
port Implications of these findings for the use of parent groups in ea
rly intervention programs are discussed.