Systematic reviews have traditionally focused on internal validity, while external validity often has been overlooked. In this study, we systematically reviewed determinants of external validity in the accumulated randomized controlled trials of social skills group interventions for children and adolescents with autism spectrum disorder. We…

Objectives: To examine evidence from studies exploring the relationship between childhood obesity and educational attainment. Design: A systematic review of secondary analyses and observational studies published in English after 1997 examining attainment as measured by grade point average or other validated measure, in children aged 6 to 16 years,…

This report, sponsored by the Office of English Language Acquisition (OELA), is a summary of evidence-based research on teaching reading to Chinese, Korean, Navajo, and Russian children. It complements a recent summary of the literature on teaching reading to Spanish speaking students. There is a significant need for evidence-based research on…