This study examined perceived parent-adolescent relationships and depressed mood among 173 early adolescents and 297 college students, all of European or Asian American background. Ethnic differences in depressed mood, not evident in the early adolescent sample, emerged in the college sample, with Asian Americans reporting more symptoms. Ethnic differences in depressed mood were reduced to nonsignificance when quality of parent-adolescent relationships was statistically controlled. The magnitude of associations between measures of parent-adolescent relationships and depressed mood was strikingly similar for European and Asian Americans at the same phase of adolescence. As anticipated, perceived parent-adolescent relationships accounted for more of the variance in depressed mood in early adolescence than in late adolescence: 44% to 51% for the junior high samples and about 10% for the college samples.Depressed mood has been described as the key affective disturbance of normal adolescence (Weiner, 1980). Indeed, some evidence suggests that depressed mood is more common in this pivotal life period than in either childhood or adulthood (Radloff, 1991;Steinberg, 1993), and developmental research has contributed important insights into those factors associated with dysphoria during the adolescent years. Three important and sometimes intersecting lines of research have examined the effects of pubertal changes, other stressful life events, and family relationships on adolescents' experience of depressed mood.Researchers have shown, for example, that certain hormonal changes are linked with increases in depressed mood (e.g., Susman, Dorn, & Chrousos, 1991). Early pubertal onset-an event of biological, psychological, and social significance-has been implicated in girls' depressed mood, and pubertal onset accompanied by other stressors, such as school changes, has been related to higher levels of depressive symptomatology in both sexes (e.g., Petersen, Sarigiani, & Kennedy, 1991). Independent of pubertal events, adolescents who experience a greater number of stressful life events report more depressed mood-a relationship that is moderated by individual differences in reactivity to stressors (e.g., Compas, 1987;Ge, Lorenz, Conger, Elder, & Simons, 1994). These and other researchers also have uncov-