“…The model is based on the idea, advocated by Shonk & Cicchetti (2001), that childhood maltreatment can influence children's performance of competencies (e.g., engagement in academic tasks) that are necessary for optimal learning and achievement in school. At the top of Figure 1, family background affects the subsequent incidence of emotional and behavioral problems (Arrows A 1 , A 2 , and A 3 ) through the effects of parent-child interactions (e.g., Patterson, DeBaryshe, & Ramsey, 1989;Ramey & Ramey, 2000), from childhood into adolescence (Costello, Angold & Keeler, 1999;Hofstra, Van der Ende & Verhulst, 2002). The influence of family background on development of conventional scholastic skills (Leibowitz, 1974), such as word knowledge, literacy, and quantitative reasoning, is represented separately (Arrows B 1 to B 4 ).…”