This article examines changes in the research design, sample size, and precision between the planning phase and implementation phase of group randomized trials (GRTs) funded by the Institute of Education Sciences. Thirty-eight GRTs funded between 2002 and 2006 were examined. Three studies revealed changes in the experimental design. Ten studies…

Improving teacher effectiveness is a key strategy to ensure student readiness for college and careers and to address achievement gaps and persistent low performance. In response to the new Common Core State Standards for English Language Arts (CCSS-ELA) the National Writing Project (NWP) created a professional development (PD) program to support…

Rigorous research provides information that will allow other schools and districts to select interventions that have a scientifically based track record of effectiveness. All Striving Reader grants include the mandate to evaluate literacy intervention(s) targeted to adolescents who are reading significantly below grade level. Although all studies…