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Joseph DiMuro wrote on Thu, Jul 21, 2016 06:49 PM UTC:

Of all the options you listed, I think the last one (making the scale -2 to 2, then summing all the scores) is the best one. But for another option, here's how they do it on BoardGameGeek:

People can rate games on a scale from 1 to 10. Games are then ranked based on the average score they receive. But to avoid having a game with a single score suddenly becoming the top ranked game, each game also receives a set of "dummy scores", which are included in the average.

Here's how it could look here: our rating scale is from 1 to 5. Let's say each game starts off with 20 "dummy scores" of 3. (I picked 20 off the top of my head; I have no idea what number would be the best choice.) Then if one person rates a game 5 (excellent), that gives an average of (20*3+1*5)/21=3.095. If another game receives 10 ratings of 4 (good), that gives an average of (20*3+10*4)/30=3.333.

What do you think?


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