June 2011
Intermediate to advanced
344 pages
8h 35m
English
A/B testing allows you to compare different designs and find out which one works best.
The definition of what “works” depends on your users’ goals.
Getting usage data is simple for websites but harder for desktop or mobile applications. Remember to get your users’ consent and tell them exactly what you’re doing.
Make sure to check whether results are statistically significant before basing decisions on this kind of data.
When you compare your highly optimized old design to your new design, realize that even if the new design performs worse in a direct comparison, it might eventually perform better if you give it the same kind of attention you gave to the previous design.
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