Thursday, July 24, 2014

Qualification Update on Amazon Mechanical Turk

Amazon announced some changes to qualification comparators. Once every ten years or so, Amazon makes an update to Mechanical Turk that benefits requesters.

There are three new qualification comparators available. The new Comparators, which include In, NotIn, and DoesNotExist, provide Requesters greater flexibility in targeting HITs to specific Workers. This will allow requesters to a specify locations without having to exclude every country in the world. For example, you can now set a qualification for “Location In US, CA, UK” instead of US only or not in IN, CK, TZ...

Read more about it on the Mechanical Turk blog.


  1. This is great news! A positive step towards inclusion for international workers.

    1. I would not say that is the reasoning behind it. Many requesters would like to include Canadian workers along with US workers and the only way to do this prior to these changes was to eliminate every other country. At least that it the issue that I see most often.