The Los Angeles Unified School District (LAUSD) serves a large majority of socioeconomically disadvantaged students who are struggling academically and are underprepared for high school graduation and college. This article describes the partnership between LAUSD and the Los Angeles Education Research Institute, and how this collaboration endeavors…

The effect of a 15- to 24-month in-service professional development (PD) program on state accountability mathematics test scores for middle school students was examined using a quasi-experimental design. Middle level mathematics teachers (n = 128) from 7 school districts and 64 middle schools volunteered for a PD sequence of content-oriented…

The purpose of this study was to determine if the National Board Teacher Certification (NBTC) process was an effective form of professional development for teachers that would result in changing teachers' instructional practice resulting in improved student learning. The study also examined how a cohort of NBTC candidates impacted the non-NBTC…

The author examined the effects of professional development (PD) on literacy instruction using 75,689 lessons from 1,945 classrooms in 112 schools participating in the Study of Instructional Improvement. Stratifying over 94 pretreatment covariates, including prior instruction, the results revealed the importance of PD as a lever for changing…

Using data from Achieving the Dream: Community Colleges Count, this issue looks at changes in cohort composition. The analysis addresses the changing composition of the Achieving the Dream student cohorts from 2002 to 2005. The data show that at Achieving the Dream colleges, the percentage of Hispanic students increased over the four cohorts…