Went through training modules, answered simple multiple choice tests, then was asked to complete a sample writing assignment. The writing assignment was easy but time consuming. At no point have I received a confirmation email that I applied or completed the exam. At this point, I believe they are using these “sample assignments” to fill customer orders without needing to pay the workers.

You're asked to take a test which assesses your pre-existing knowledge on how to approach a research project and grammar. If you pass, you're given the opportunity to complete a research report in their platform. However, the platform during the interview is not identical to the actual working platform. The interview platform is untimed and the actual one has a 4-hour timer with no chance to extend by 30-minute increments as indicated by some other older reviews. I actually had fun writing the report, but that is because it was untimed and on a topic that was interesting to me. When I submitted my work I felt good about it, unlike the actual experience where I submit work that I'm in doubt about and had to rush to complete.