Just a heads up, for those interested : The American Board for Certification of Teacher Excellence is in the process of developing Physics and Chemistry certification tests. As part of this process, they need statistical data on the difficulty of different questions. They generate this statistics through field tests. Participants are paid $75 (for chemistry) or $100 (for physics, which is a longer test) for taking a test. You also get an additional $50 if you score in the top 25 percentile. You can sign up for both tests, if you believe you qualify. By my estimate, the difficulty of the tests is close to the AP level (decide for yourself; there's a syllabus on the website). And it's pretty easy to bag that extra reward (I just did, on both tests). Your scores will remain confidential. The ABCTE needs more participants and asked me to pass on this message. For registration and information : http://www.abcte.org/fieldtest If you do sign up for one or both tests (or plan to), please post here and let me know. If you have any questions, ask here or PM me. The tests run till July 1st. PS : They also have test centers in Tamuning, GUAM, Sydney, AUSTRALIA, and London, UK (among a couple of other places), but none in Canada.