Airbnb A/B Tests And Implements Customer Rating Averages Above Search Results
In this simple experiment, Airbnb tested the display of customer rarings averages on their search results screen. The tested copy was a form of social proof which showed the average rating of the properties for a given city (defined by the search). In the end, the variation with the visible customer ratings was implemented (or kept) once the a/b test finished - possibly providing some evidence in favor of the customer star rating pattern.
Highlighted UI Changes From This Leak
The Social Proof Copy With Customer Rating Averages
The tested variation (B) contained the following copy: "Over 460,000 guest reviews for places to stay in Seattle, with an average of 4.8 out of 5 stars". This copy also pushed down the rest of the listings.
Here is what the mobile screenshots looked like.