From an ecological perspective (Bronfenbrenner, 1979), early childhood development occurs within the multiple contexts of the home, the school, and the neighborhood, and aspects of these environments can contribute to the development of adjustment problems. Thus, the study of adjustment must be embedded in analyses of the contextual risks to which children are exposed (Sameroff & Seifer, 1990). Risk factors such as low socioeconomic status (SES); single-parent family status; ethnic minority status; family history of psychological, substance use, and legal problems; marital discord; and lack of social support have all been shown to be related to an increased likelihood of psychological problems in children (Liaw & Brooks-Gunn, 1994; Sameroff, Seifer, Barocas, Zax, & Greenspan, 1987; Yoshikawa, 1994). Not all children raised in such contexts develop adjustment problems, however (Cowen et al., 1992), and no one factor alone accounts for children's adjustment problems (Sameroff & Seifer, 1990). Studies of multiple risk factors indicate that an increase in the number of risk factors experienced by a child results in an increased likelihood of that child developing adjustment problems (Rutter, 1979). Therefore, in predicting children's psychological adjustment, it is important to consider the effects of multiple risk factors within a theoretical model. Indeed, all risk factors do not have equivalent meaning, and they may represent varying levels of conceptualization. In the present study, the combined effects of demographic, family psychosocial, and neighborhood risk factors on children's development were examined in families from four American communities. The present study involved a test of the hierarchical and unique contributions of three major dimensions of social context on the behavioral, academic, and psychological outcomes of a culturally and geographically diverse combination of child populations.
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