“…By demonstrating that the positive results that have been found in general for dual language programs also occur in segregated settings of predominantly Hispanic and low SES students, this study affirms the versatility of the program for this increasingly common educational context. However, we agree with Davis and Thompson (2004) that such segregated settings require carefully developed programs that meet the needs of the students, and we agree with Howard et al (2007) that dual language programs have to be carefully developed in order to promote positive outcomes for ELL and EP students. In fact, Howard et al (2007) provide a set of guiding principles for developing high-quality dual language programs, with the principles oriented around program structure, curriculum, instruction, staff quality, and professional development, family and community, support and resources, and assessment and accountability.…”