The authors examined how well 394 triads of male youths, caregivers, and teachers agreed about youth problems reported on the Achenbach checklists. Dyadic agreement was measured through difference scores (subtracting the raw score of youth self-report from the caregiver's or teacher's score for shared items), q correlations between pairs of raters across items, and D2 (generalized distance between item profiles) for both externalizing and internalizing items. Teachers reported fewer internalizing and externalizing problems than did caregivers or youths. Teacher-youth disagreement was higher for African American than European American males about externalizing criteria. Caregiver depression and stress (but not paternal antisocial behavior or maternal substance abuse) correlated with higher disagreement with other informants about all criteria. These factors appear to increase disagreement about the level of problems but not about specific symptom patterns.