Absence of culturally relevant measures of Black children's strengths inhibits psychometrically sound strength-based assessment, research, and appropriate use of strengths as scaffolds or targets for clinical intervention. Moreover, the sparse research literature on Black children is primarily deficit focused. Beginning to address these problems, considerable input was sought from the Black community in constructing behavioral and emotional strength forms for Black children. Exploratory factor analyses conducted separately on 559 parent reports, 489 teacher reports, and 417 adolescent self-reports revealed two unidimensional cross-informant factors labeled Resilience and Self-Regulation and Prosocial Behavior. Item response theory analyses revealed invariance across gender, socioeconomic status, and age, but variance across informant type and referral status, and that most items provide sufficient psychometric information to warrant retention for clinical assessment and research. (Contains 5 tables and 2 figures.)