The current project will use an existing data set that is nationally representative of Head Start programs to achieve the following objectives: 1. Identify aspects of home and Head Start environments that impact the simultaneous development of English and Spanish language and later impacts on behavioral outcomes. 2. Engage in active conversation with policy makers and practitioners at a local Head Start partner site, to develop and disseminate person-centered approaches that engage, support, and meet the unique needs of DLL students.