3 ms·
Indeed, they confounded variables instead of changing exactly one in the A/B test. http://en.wikipedia.org/wiki/Confound http://en.wikipedia.org/wiki/Confound
by Pistos2 17y ago
Indeed, they confounded variables instead of changing exactly one in the A/B test. http://en.wikipedia.org/wiki/Confound http://en.wikipedia.org/wiki/Confound