Most Winning A/B Test Results are Illusory
Marketers have begun to question the value of A/B testing, asking: ‘Where is my 20% uplift? Why doesn’t it ever seem to appear in the bottom line?’ Their A/B test reports an uplift of 20% and yet this increase never seems to translate into increased profits. So what’s going on?
In this article I’ll show that badly performed A/B tests can produce winning results which are more likely to be false than true. At best, this leads to the needless modification of websites; at worst, to modification which damages profits.
Martin Goodson (MPhil)
Research Lead, Qubit
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