This final report from Mathematica’s congressionally mandated study of educational technology presents effects for the 2005-2006 school year for 10 computer-based reading and math products. Teacher experience using the software was not systematically related to changes in effects between...

The No Child Left Behind Act called for the U.S. Department of Education to conduct a national study of the effectiveness of educational technology. The study identified reading and mathematics software products based on prior evidence of effectiveness and other criteria and used an experimental...

By comparing experimental and propensity-score impact estimates of dropout prevention programs, we examine whether propensity-score methods produce unbiased estimates of program impacts. We find no consistent evidence that such methods replicate experimental impacts in our setting. This finding...

Explores whether propensity score methods produce unbiased estimates of program impacts, by comparing experimental and propensity score impacts of dropout prevention programs. Finds no consistent evidence that they do--even when the data available for matching are extensive. Suggests that...

Recommends that an upcoming study of the effectiveness of educational technology in improving academic achievement focus on four goals: (1) defining what is meant by "educational technology," (2) deciding how to measure effectiveness, (3) clarifying what kinds of students will be studied, and...

The No Child Left Behind Act called for the U.S. Department of Education to conduct a national study of the effectiveness of educational technology. The study identified reading and mathematics software products based on prior evidence of effectiveness and other criteria and used an experimental...

Recommends that an upcoming study of the effectiveness of educational technology in improving academic achievement focus on four goals: (1) defining what is meant by "educational technology," (2) deciding how to measure effectiveness, (3) clarifying what kinds of students will be studied, and...

Explores whether propensity score methods produce unbiased estimates of program impacts, by comparing experimental and propensity score impacts of dropout prevention programs. Finds no consistent evidence that they do--even when the data available for matching are extensive. Suggests that...