This is the second in a Times series examining the effectiveness of teachers and schools in the Los Angeles Unified School District using a statistical analysis of students’ California Standards Test ...

Value-added teacher evaluation has been extensively criticized and strongly defended, but less frequently examined from a dispassionate scientific perspective. Among the value-added movement’s most ...

Includes updates and/or revisions. As value-added research designs gain in popularity and undergo increasing scrutiny, experts are beginning to wave cautionary flags about how best to make use of them ...