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 ...

Includes updates and/or revisions. The statistician who pioneered the use of “value added” research techniques for documenting students’ year-to-year academic progress is disputing a critique of his ...

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 ...

In a dramatic turn for the country’s second-largest school district, Los Angeles Unified released school ratings based on a new approach that measures a school’s success at raising student performance ...

Students, parents and staff at Jackson Middle School embrace Daniel Santos as a great teacher. Just this week, he was awarded for “Making Dreams Come True” by the school’s Title I coordinator and its ...