Based on the finalized design from T146663 and T139310, this A/B test will have a test group that will be shown thumbnails (free use images only) for the search query results and updated metadata for each search result. A control group will see the currently existing search results page.
> This test is expected to last a week - the Wikipedia where this test will be run on is yet to be determined, but will be based on community input.
> Take into account this [[ https://www.mediawiki.org/wiki/Topic:Trq5d5ikzsk8e6kd | community feedback ]] on using Wiktionary results.
> Note: we'll need to see if the images increase the clickthroughs on search results for the listing and how long the page took to load.
> Note: The images used in this test will be displayed using the [[ https://www.mediawiki.org/wiki/Extension:PageImages | PageImages API extension ]], similar to what is being used on the Wikipedia portal page in the search box type ahead feature.
**Test group users will see for //all search results// returned**:
* thumbnail (as available) image for the search result
**Test group users will see for //all search results// returned**:
* normal search results page
**Bucket testing** logic //generally// is as follows:
- 1 in 200 users are included in EventLogging
- Of those 1 in 200 users, 1 in 10 are included in the test
- Of those 1 in 10 users
-- 50% go in a **test** group, labeled "serp_add_thumbnails"
-- the other 50% of users will go in a **control** group, labeled "serp_no_thumbnails"
- The remaining chunk of the original bucketed 200 users will get a NULL (the string null, or the MySQL null, we can detect either).
**Eventlogging** needs to capture:
* if the user clicked on any of the top 3 search results vs the rest
* what position the result was in that the user clicked on (1st, 2nd or 3rd search result)
* how long it took the images to load on the page
* how many images were displayed as compared to the amount of the search results returned
First draft:
{F4688738}
Second draft:
{F8849117}