The authors specified separate models for ethnic groups and tested whether gender moderated the effect of victimization experiences and parent-child characteristics on externalizing behavior. The sample included 167 Latino and 625 White adolescents ages 10-17. For Latino adolescents, parental physical assault was related to more externalizing behavior for males and for females. More parental conflict and more criticism were related to less externalizing behavior for Latino females but not for Latino males. For White adolescents, all types of victimization (by parents, by siblings, by peers, witnessing domestic assault) and more parental conflict were related to more externalizing for males and for females. More monitoring was related to less externalizing behavior for White males but not for White females or for Latino adolescents. The intersection of ethnicity and gender may be important when examining adolescents' externalizing behavior. Abstract published by arrangement with Springer.