Twenty-nine males with hemophilia completed the Medical Compliance Incomplete Stories Test (M-CIST), and their scores were correlated with health care professionals' ratings of four aspects of medical compliance, along with measures of possible moderating variables. The results indicated that significant associations were found between most of the M-CIST category scores, particularly the Compliance/coping subscale, and the health care specialists' ratings of how well the children exhibited compliant responses to bleeding episodes, and inverse associations with the incidence of monthly bleeding episodes. The findings suggested that the M-CIST continues to demonstrate promise as an instrument to be used in studies of compliance among pediatric chronic illness patients.