The participants in this longitudinal investigation included 415 children whowere assessed across four waves of data collection, including ages 7 to 9, 10 to 12, 13 to 15, and 15 to 18. During the first two waves of data collection, Phase 1 of the study was conducted. Children attended a summer camp research program designed for school-aged low-income children (Cicchetti & Manly, 1990), with first wave participation occurring between the ages of 7 to 9. Children were invited to participate subsequently during childhood in the second wave at ages 10 to 12. In Phase 2 of the study, participants were followed up during adolescence and invited to take part in a series of individual interviews and research assessments. These assessments occurred during Wave 3 at ages 13 to 15, and again at Wave 4, ages 15 to 18. The sample included both maltreated children (n = 259) and nonmaltreated children (n = 156). The maltreatment groups were comparable in terms of gender, with 59.8% boys in the maltreatment group and 61.5% boys in the nonmaltreatment group, χ2 (1, N =
