I talked to someone, well got into a pretty heated "discussion", who did one of these surveys asking students and here is why it is flawed. They ask if they ever made any kind of bet, regardless of stake or whatever. My belief is that there are extremely few Adrian McPhersons out there, but the way the NCAA and the pollsters portray it you would think it is a ticking time bomb.
The problem is that there is an agenda with the surveys so they make them as broad as possible and then give out the data with intonations that it is narrow. They ask have you ever bet on your team. Note "ever" and no distinctions as to what type of betting. I finally got this pollster to admit this would include something like a player betting with his old man a steak dinner he would score a TD. It also includes things as participating in pools like what Ricky got fired for, college bowl pools are out there and the player's team might be one of the games. For a $5 bet on a pool that covers all 20 plus bowl games you want to tell me that this player is risking his integrity???
The hypocrisy that guides the anti-gambling crowd in their polls is outrageous. They will do just about anything you can imagine to skew the results to the effect they want. They like to talk about how much crime and prostitution goes up when a casino comes in, what they don't tell you is that before the casino it was an empty lot with no business! Now you tell me if it was previously an empty lot and now it is a casino, does the fact that they got 3 prostitution arrests in the last year imply that the place is out of control? Of course not, but that is the lie that pollsters can spew if given the chance.