Oh, you mean the scientific method?? Well, since you and I are younger than Dave, I would then guess he knows more about that than us...< bg >... So, there is nothing you or I could do to enlighten him..

>>Maybe for scientific method or geometry theorem proofs. But not if you're dealing with statistical analysis of trends. There will be exceptions to any pre-conceived theory that you may have when starting to research a question, but the points on the graph will *sometimes* lead to convincing conclusions.
>
>Well, in that case, I'd love to see the study's design...you know, controls, expected outcomes, test population, etc.