Piaget's systems theory is the main guiding framework upon which García Coll et al's work is built. True False Question 6 Garcia Coll et al. argue that minority children have been largely neglected in published research due to the following (select all that apply): Normative development of minority children has not been investigated in longitudinal studies. Instead of process, outcomes are the main focus on existing research on minority children. Variability within minority groups is mostly ignored in favor of making comparisons between groups. Little account for the diversity within minority groups is taken in research studies; they are treated as large, homogeneous groups. All research applies to minority children similarly. None of the above. Categories of social stratification and elements derived from them (racism, discrimination, segregation, etc) are not a substantial part of research on minority children.