This study examines the ties of sixth-grade teachers to their interdisciplinary team colleagues and explores the dimensions of their efficacy beliefs for their own and their colleagues' teaching. Teachers (n = 238; 83% female, 88% White) from 26 middle schools completed surveys about the relational aspects of ties to team colleagues, the…

This study investigated the extent to which a state-funded teacher professional development program designed to improve K-2 science education led to changes that persisted beyond the funding period. The study used a longitudinal, mixed-methods approach and examined persistence of changes in teachers' content knowledge, self-efficacy, instructional…

In both the school effectiveness and the educational administration literature, growing attention has been paid to the extent of principal leadership effects and the means by which they affect school performance. The main goal of this study is to estimate the effects of principal leadership on students' achievement growth in mathematics over a…

We used the Early Childhood Longitudinal Study--Kindergarten Cohort (ECLS-K) data to examine how important mathematics readiness levels are to subsequent achievement growth and the efficacy of instruction and engagement in producing such growth. The ECLS-K selected a nationally representative sample of kindergartners in fall 1998 and is following…