The late Gerald Bracey, once called "America's most acerbic educational psychologist," spent most of his time calling out bad education research and data, trying to explain that things did not always mean what the author said they did and that numbers were too often wrongly interpreted. He wrote a book about it, titled "Reading Educational Research: How to avoid getting snookered," in which he was given that "acerbic" title by my Washington Post colleague Jay Mathews in the book's foreward.
The book came out in 2006, but the issue remains as important as ever. Today, hardly a day goes by without yet another research study on some aspect of education being released, often with news releases topped with a headline declaring that something definitive has been found and the proof is finally here. Except too often it isn't.