Sorting based on total score

[johnharveybc]

For reddit-style metrics (voting up/down) the way total score is sorted is broken. If sorted in descending order, a total score of 9 will be shown about a total score of 64: sorting appears to be based on the first digit, as opposed to the actual numerical value. Perhaps the scores are being sorted as text, as opposed to numbers?

Screenshot: http://wiki.ubc.ca/images/4/43/Evaluate-sorting.png

(scores of 7 appear above the score of 64)

[Ardnived]

What is the ratio of upvotes to down votes for that article? Is the total number of votes for the other articles significantly higher? I agree, 64 vs 7 is a very high difference, but this might be because Evaluate doesn't sort directly by Up Votes vs Down Vote.

You can read about why, here;

For two-way (up/down vote) metrics, the lower bound of the Wilson Score interval is calculated. This tries to better approach the 'real' ratio, of up versus down votes, than other methods, as explained in How Not to Sort by Average Rating.

Reddit actually uses the same system.

[johnharveybc]

The metric in question is one-way: there are only votes up. If you want to
have a look at the results yourself, the metric in question is 'was this
helpful' on Digital Tattoo (http://dt3.sites.olt.ubc.ca/).

The article in question (with 64 votes) has the highest number of votes on the site.

On Nov 8, 2014 9:01 AM, "Devindra Payment" [email protected] wrote:

What is the ratio of upvotes to down votes for that article? Is the total
number of votes for the other articles significantly higher? I agree, 64 vs
7 is a very high difference, but this might be because Evaluate doesn't
sort directly by Up Votes vs Down Vote.

You can read about why, here;

For two-way (up/down vote) metrics, the lower bound of the Wilson Score
interval
http://en.wikipedia.org/wiki/Binomial_proportion_confidence_interval#Wilson_score_interval
is calculated. This tries to better approach the 'real' ratio, of up versus
down votes, than other methods, as explained in How Not to Sort by
Average Rating
http://www.evanmiller.org/how-not-to-sort-by-average-rating.html.

Reddit actually uses the same system
http://www.redditblog.com/2009/10/reddits-new-comment-sorting-system.html
.

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