Background: The growing interest in principal effectiveness as a means of improving teaching and student learning has led to a focus on the quality of principal preparation programs (PPPs) with calls for the adoption of PPP accountability systems similar to those of teacher preparation programs. Objective: The purpose of the present study is to…

Charter schools are a relatively new phenomenon in American education. Since the first charter school opened in Minnesota in 1991, they have expanded to 42 states and represent 6.2% of all public schools in the country. This growth has been attributed to a number of factors, chief among them evidence that charter schools can improve performance…

Brief, targeted self-affirmation writing exercises have recently been offered as a way to reduce racial achievement gaps, but evidence about their effects in educational settings is mixed, leaving ambiguity about the likely benefits of these strategies if implemented broadly. A key limitation in interpreting these mixed results is that they come…

Background: Cluster randomized experiments that assign intact groups such as schools or school districts to treatment conditions are increasingly common in educational research. Such experiments are inherently multilevel designs whose sensitivity (statistical power and precision of estimates) depends on the variance decomposition across levels.…

This issue features seven studies that address affective as well as academic educational outcomes. The first article incorporates teachers' perceptions of the role of technology in supporting English language learners' writing. The second article highlights results for two cohorts of young children served by an Early Reading First program at…