Craig Ogg wrote:
Why do people disagree on what the lower bound of a rating system is? I think Ryan says Amazon's lower bound is 1 because you can't enter a lower rating (you have to click on a star to set the rating). I also believes that this is why he made it the default. I think others disagree because the user may have wanted to give it less than one star but was constrained by the input mechanism -- IOW, the real lower bound is zero but Amazon just doesn't allow that to be chosen any more than they let 3.5 be chosen.
Personally, I disagreed because it said 0 in the real world example page. And I didn't put much effort into verifying those numbers because the first few I tried to verify didn't actually publish lower bounds at all, so I could only discover them by registering and creating a review to test how low I could make the rating.
As far as I know, none of the real world examples actually publish lower bounds; they're only implied. Am I wrong about that, or are we really discussing how to format data that no one is publishing?
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