Differences in subscale scores on the questions about behavioral function (QABF) were assessed for participants identified with pica, rumination, food stealing, food refusal, and mealtime behavior problems (e.g., aggression, self-injurious behavior). The QABF was administered to informants for 125 individuals identified with problematic feeding behaviors and mental retardation primarily in the severe to profound range. Results of the nonparametric analyses yielded significant differences across the escape, nonsocial, physical, and tangible subscales of the QABF. Behavior functions most commonly associated with problematic feeding behaviors were identified. The results extend upon previous literature describing behavioral function of feeding problems for those with mental retardation.