A randomized controlled study of 38 families with 57 children was conducted to determine prospectively the psychological effects on siblings and their parents of sibling visits to a newborn intensive care unit. Assessment tools included the Missouri Behavior Checklist,1 a Modified Vernon Questionnaire,2 a Family Changes Questionnaire,3 a semi-structured child psychiatry evaluation, and a symptom log for newborn infections. Overall behavior and anxiety did not worsen in either group of children. Child and family functioning improved for both groups (p<.001). Parental well-being was enhanced significantly by the visit (p<.05). None of the study children were upset by the visit and some demonstrated benefit from the experience. The newborn infants who were visited exhibited no increase in symptoms of infection over the control infants.