Each time international tests of student achievement are released, there is a parade of glib commentators explaining why we should not pay much attention to the generally poor performance of U.S. students. The arguments have become fairly standard. Don’t worry, these tests really do not indicate anything that is very important. Moreover, if one reads the results carefully, it is possible to find areas where the U.S. looks pretty good. And if we just look at our best students, they are competitive with students from other countries.