President Obama and others have demonstrated considerable interest in the Tulsa school-based pre-K program, one of a handful of universal pre-K programs in the U.S. The short-term effects of high-quality pre-K on school readiness are now well-established. At the same time, questions have been raised as to whether these effects persist over time.…

This causal-comparative study examined the effects of the collaborative leadership style provided by professional learning communities (PLCs) on the students' Tennessee Comprehensive Assessment Program (TCAP) mean Value-Added achievement scores in language arts and mathematics. The study used twenty-nine selected middle schools in eight different…