This is a good time to review some problems in met codes. The first real problem is that the science is poorly understood. If the model is poorly constructed conditioning is one of the least of your problems. By and large, the push for V&V came form the met world. The second thing is that the spatial resolution is 'way too big. And, long before IEEE 754, it was anecdotally known that you lose a digit whenever you change systems (hardware or software).

We will agree to disagree.

It is a cultural issue. But it's global, too. Yes, you do care whether dictators' kids are exposed to these behaviors in games because you don't know who the next Gaddaffi is. Could be sitting across the room right now.

Not everyone has enlightened parents and not all game players are necessarily stable. And your evidence doesn't hold: You can't prove a universal statement with one point of evidence. Gee, I wonder if Gaddafi's kids played Mortal Kombat. The question is one of ethics. The Red Cross is keenly aware of the broader situation.

One should think about this seriously. As a infantry combat veteran of the Vietnam war, I am sensitive to atrocities and Geneva Convention violations on both sides. The second piece of evidence is that games are a form of learning. Combat is a grizzly business. If you are not strong in your moral convictions then there are times when atrocities will happen. Remember My Lai? If we teach, through games, that atrocities are fun and OK, then what stops that from becoming the way wars are fought?

Doing this sort of thing is called "the Tabbaco Strategy". Read "Merchants of Doubt: How a Handful of Scientists Obscured the Truth on Issues from Tobacco Smoke to Global Warming" Naomi Oreskes (Author), Erik M. M. Conway (Author) http://www.amazon.com/Merchants-Doubt-Handful-Scientists-Obscured/dp/1608193942/ref=sr_1_1?ie=UTF8&qid=1309463389&sr=8-1

A great place to visit is www.shodor.org/interactivate for online tools that are keyed to the states' standards. These exercises contain information for the instructors and the students. Interactivate has been awarded many awards for their quality. We even use them at the university level.

Harvard Physics discovered this exact problem in the 1960s and hence started all the misconception work by Hestenes, et al. and that work's spread to just about everything (except computer science). The TOLT (Tobin and Capie, 1981) test is readily available for physics and similar ones for each discipline --- enjoy: try it on your kids, spouse and others.