How are the reading tests in TNT Reading normed?

The TNT Reading system programs are based off of the Virginia Standards of Learning requirements for reading at each grade level. The training exercises were constructed to address the Standards of Learning criteria for each skill level and then the tests were derived from the training exercises. The pass/fail status for each test is a simple criterion measure, i.e., you fail if you don’t reach above a certain percent correct level. The criteria are not based on what the average person at that age would know, but rather on what the SOL says they should know and the need to exhibit that knowledge.