A/B Test Setup

What KPI’s to measure with an A/B test?

We Recommend on of the two options below:

  • Conversion Rates are an indicator for the increased purchase probability due to the usage of the Size Advisor - which leads to a decreased insecurity about sizing of visitors.
  • The Average Revenue per Visitor incorporates effects on changed spending behaviour (e.g. more products or more expensive products are bought). Typically the Average Revenue per Visitor gives a more comprehensive picture as this KPI measures how much more revenue is generated per customer through use of the Size Advisor.

In both cases, these KPI’s need to be measured against not purely comparing all visitors of the A-side to the B-side, but people who use a size chart (or similar help) on the A-side vs. always people who seek size advice through the Size Advisor on the B-side.

AB test1



AB Test 2

IMPORTANT: Never show 2 different sources of size help directly on your product detail page. If you provide any other size information (e.g. Size charts, brand comparison charts etc.) to your customers, do NOT show this on the Variation Side (B Side) as multiple sources of size information confuses other online shoppers and negatively impact conversion rates.

Need help? Contact us at support@shoesize.me