macbone wrote:There's no way to rate someone as a 4.7 or 4.8 because that level of granularity really isn't necessary, especially for a casual site. A Likert scale 1-5 rating system is widely accepted in survey research, and I don't think CC requires more than that. Movie reviewers use 4 stars or 5 stars, which does create a bit more confusion, but readers can process it. Understanding grades on essays can be more difficult, especially when they're not supported by some kind of rubric, but if a rubric is given that clearly differentiates between scores, it's easier to understand marks. My paper got an 85, but yours got an 86? Why? Oh, ok, I got 1 mark less on grammar than you did on the grading rubric.
It's very difficult to draw analogies from surveys to community rating systems. In a survey the responses are anonymous, which removes the pressure to give inflated positive responses (yes, of course surveys still have bias, but this kind of bias is much larger when the "survey" responses are public). The reason why people are so inclined to give 4s or 5s is that everyone can see if you don't follow the community trend, so there's peer pressure to change your rating. That never happens in surveys because you don't know what everyone else is responding until after the survey is over.
Edit: I know of no survey that processes unanswered responses as neutral responses, and no evaluations that do the same. I don't always rate my Amazon sellers (gasp!), and they don't automatically get some kind of neutral response. I don't see why CC should be the exception to this.
Yes, and Amazon's system is similarly lacking in information. There are people who are generally reliable and have lots of "A+++++++++ would buy again" ratings, and there are people who have lots of negatives or neutrals. This is much closer to a binary because either a person can be counted on to deliver the product, or they can't be. That's all Amazon's system is meant to tell you. For our rating system we want much different information because there's no binary like "is this person fun to play with" -- or else there wouldn't be a distinction between 4.6 and 4.8, which there probably is.
The fact that we're not aware of anyone having done this doesn't mean it's a bad idea. I think it would be a very interesting experiment, and there's not much to lose.
Edit D: Would changing the scale from "Bad, Below Average, Average, Above Average, Excellent" to "Terrible, Poor, Average, Good, Excellent" make a difference in ratings? No? OK, then, carry on. =)
It might. Temporos' suggestion in Submitted included moving the scale from -2 to +2 instead of 1 to 5. I think we should do that even if we don't do the automatic neutral ratings.