Here’s a brief take on the growth of testing related to No Child Left Behind legislation from the current “small-government” administration, via Parade magazine:

Over the last two years, 23 states across the country have added more than 11.3 million reading and math tests to their school curricula in order to keep up with the requirements of the federal No Child Left Behind Law. Michigan alone has tacked on more than 1 million new tests; New York, more than 1.7 million. While experts are debating whether increased testing helps kids learn more, most agree that it does mean big bucks for the testing companies. The school testing and testing services industry (which includes tutoring, test prep courses and the tests themselves) is now an estimated $2.3 billion a year enterprise, with just five big companies controlling 90% of the statewide testing revenue.