4 ms·
"Most reviews give a bell-shaped curve of star ratings;" Not true now [1] and not true back then [2]. [1] http://portal.acm.org/citation.cfm?id=1134743 http:/
by ckuehne 16y ago
"Most reviews give a bell-shaped curve of star ratings;"
Not true now [1] and not true back then [2].
[1] http://portal.acm.org/citation.cfm?id=1134743 http://portal.acm.org/citation.cfm?id=1134743
[2] http://econpapers.repec.org/paper/eclstabus/1670r.htm http://econpapers.repec.org/paper/eclstabus/1670r.htm (Fig. 1)
- acangiano 16y agoThe same was true for YouTube comments, and that's why they switched to Like/Dislike buttons. When it comes to judging the value of things, people tend to be all or nothing.
- philwelch 16y agoThat's more the case if you show some sort of aggregate 5 star rating on the front page, I suspect. If you look at peoples iTunes libraries they probably use 2-4 stars a lot and 1 or 5 stars more rarely. But on Amazon, people who think a book is 4 stars but see it rated as 3 stars are going to vote for 5 stars to push it up more.
- eru 16y agoThey should aggregate the reviews by taking a median. That way there's no incentive to game the system.
- xenophanes 16y agoOnly works if people understand there's no incentive... Which they won't, cause math is so hard...
- eru 16y agoOnly the median voter(s) would need to understand that there's no incentive.
- rbanffy 16y ago> When it comes to judging the value of things, people tend to be all or nothing. Not really. The sample is self-selecting. People who neither love nor hate don't care enough to vote.