Observation tools that measure the quality of children's classroom experiences are a key component of pre-K quality improvement initiatives. However, the information provided by these tools has limitations for improving the quality of instruction for the full range of pre-K program types, even when supported by an instructional coach. This report…

The Department of Health and Human Services submits this report to the House Appropriations Committee in response to the following language the House Report 116-450: (1) Impact of the Federal Poverty Guideline. -- The Committee recognizes emerging challenges in Head Start's ability to fulfill its purpose of serving low-income children and their…

Understanding and characterizing treatment effect variation in randomized experiments has become essential for going beyond the "black box" of the average treatment effect. Nonetheless, traditional statistical approaches often ignore or assume away such variation. In the context of randomized experiments, this paper proposes a framework…