Similar to, and more fun then the validated test above but often useless. May need to compare other people's scores on exact same puzzle. School tests could possibly work the same way if the serial tests are given to enough people and a difficult of each question can be assessed. | Similar to, and more fun then the validated test above but often useless. May need to compare other people's scores on exact same puzzle. School tests could possibly work the same way if the serial tests are given to enough people and a difficult of each question can be assessed. |