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thelawnet said:It references the following study
Old / Expired Link
$30 to view it :-(
The article comes from the perspective of gambling addiction, so I'm not sure whether it will give software names and so on. I believe statistics is Psychology 101, so presumably the quoted figure, that 'The results of the test showed that 39% of the sites paid out more than 100% during the demo sessions, clearly an inflated rate. ' has been properly verified.
Without having seen the study, though, it's very possible that 39% of sites could fairly pay out over 100%, depending on the game played. For instance, if you bet $100 (play credits) at 100 sites on 'odd' on roulette, then you would expect to pay out over 100% about 48.5% of the time.
So without seeing what the article says, a statisitc that 39% of sites paid out more than 100% seems pretty reasonable to me - casinos might have the edge, but without variance giving players a chance to win as well as lose, nobody would play.
scrollock said:...casinos do "cheat" in demo mode, in that they inflate the payout rate
I think this paper has already been mentioned somewhere, and we have subscription at work so I was able to read it. I was not impressed, if I remember correctly, there is no precise description of exactly what games they played, and no attempt to establish whether the numbers are statistically significant. They only played a fairly small number of games at each casino, 100 or maybe 500. If you play blackjack, it is almost 50-50 whether you win or lose, so 39% winning session would be more of an indication that fun mode is cheating in the casinos favour. I will look up this article again and try to contact the authors and the journal.scrollock said:thats what i thought when i first read it, as they say statisics can lie, so without seeing the actual method used to determine this 39% we will never know.