Prevalence rates for bullying victimization among children with disabilities have varied greatly in the research literature. Two reasons for such variability were the focus of this study: (a) rates vary as a function of disability type, and (b) rates vary based on the bullying measure and criteria used to classify students as bullying victims. The…

The purpose of the present study was to reveal the developmental pathway from third grade cognitive competencies to sixth grade conceptual and procedural fraction knowledge through the intervening whole numerical skills at fifth grade. The study used empirical data that come from 536 students in nine schools across two Delaware public school…