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## Chrome Users Are Best With Numbers, IE Users Worst203

New submitter dr_blurb writes "After reading about last year's hoax report 'Intelligence Quotient (IQ) and Browser Usage' I realized I was in fact already running a real live experiment measuring number skills: a site were you can solve Calcudoku number puzzles. I analyzed two years' worth of data, consisting of over 1 million solved puzzles. This included puzzles solved 'against the clock,' of three different sizes. For each size, Chrome users were the fastest solvers, Firefox users came second, and IE users were the slowest. The number of abandoned puzzles (started but never finished) was also significantly higher for IE users. Analysis shows that the differences are statistically significant: in other words, they did not happen by chance. I put up more details and some graphs, and also wrote a paper about it (PDF)."
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## Chrome Users Are Best With Numbers, IE Users Worst

• #### Could happen by chance (Score:5, Informative)

on Saturday March 03, 2012 @06:01PM (#39234125) Homepage
Statistical significance just means something is unlikely to occur by random chance. Said another way, it means there is evidence that it didn't happen by random chance, but not definitive proof. (This couching of conclusions is a mainstay of statistics.) Moreover, statistical significance doesn't necessarily translate to practical significance, but I didn't RTFA to find out if that was being claimed.
• #### Re:Is this just a measure of browser performance? (Score:5, Informative)

on Saturday March 03, 2012 @06:25PM (#39234263)

Yeah, my first thought was that maybe his site causes IE to crash sometimes, which would look like an abandoned game.

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The IQ of the group is the lowest IQ of a member of the group divided by the number of people in the group.

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