NGSS Early Implementers is a four-year initiative created to help eight California school districts and two charter management organizations, supported by WestEd's K-12 Alliance, implement Next Generation Science Standards. The Initiative focuses on NGSS implementation in grades K-8 and incorporates the integrated course model (preferred by the…

The main goal of this report is to present evidence on the predictive validity of an English language arts (ELA) performance assessment (PA) administered in Grades 2-9 in a large urban school district. To account for the hierarchical structure of the data (students are nested within schools), we employed hierarchical linear modeling (HLM) to…