Mail-in genetic tests offer a wealth of information about your ancestry and insight into medical risks — in exchange for a lot of data. Here’s where that data goes, and how to delete it. By Eric ...

Includes updates and/or revisions. The National Assessment of Educational Progress is widely viewed as the most accurate and reliable yardstick of U.S. students’ academic knowledge. But when it comes ...

Question: What activity is done by most teachers in the United States, but has almost no evidence of effectiveness in raising student test scores? Answer: Analyzing student assessment data. This ...

The Centers for Disease Control and Prevention is conflating the results of two different types of coronavirus tests, distorting several important metrics and providing the country with an inaccurate ...