The Language Interaction Snapshot (LISn; Sprachman et al., 2009) was used to measure the quantity and quality of language interactions in English and Spanish in 143 preschool classrooms serving Spanish-speaking dual language learners. Both teachers (n = 112) and assistant teachers (n = 92) were included in analyses with a total of 461…

A quantifiable measure of teachers' intervention fidelity when delivering curriculum-based interventions allows researchers to interpret the effectiveness of the curricula under scrutiny. Fidelity measures, however, must accurately represent the critical components of an intervention to confirm that the intervention was delivered as intended and…

The purpose of this research is to examine the efficacy of "Tools of the Mind". Specifically, the aims of the research are to: (1) Evaluate the short- and long-term outcomes of Tools of the Mind, designed to promote school readiness for Latino preschoolers who are English Language Learners and at risk for later school difficulties; (2)…