An eye-catching new statistical analysis by economists at Harvard and Columbia universities finds that having a high-quality teacher for even one year can have a measurable long-term impact on ...

The Los Angeles Times has now posted online their controversial database of teachers’ value-added performance. This is extremely interesting if you are an LA teacher or have a child in that system, ...

Adjusting for guessing and applying a statistical test to the disaggregation of value-added learning scores Adjusting for guessing and applying a statistical test to the disaggregation of value-added ...