This study assessed the extent of behavioral distress, fear, and pain of 10 children hospitalized for bone marrow transplantation. Parents and nurses completed bi-daily ratings of the child's level of behavioral distress, fear, and pain, while children completed bi-daily ratings of their fear and pain. Analyses showed high parent-nurse agreement on ratings of children's behavioral distress, but generally low interrespondent agreement on ratings of children's fear and pain. Results also indicated significant changes over time for ratings of children's fear and pain, but not for ratings of behavioral distress.