I accepted my first 2 test cycle invitations from uTest at the end of December: one to test a device, and one for website shopping. There were some glitches, both on my part, and on the uTest side. Good learning experience either way. I think I'll go back through the uTest Academy courselets (now 23 of them) to refresh some info in my mind. I'm still pretty nervous, but hanging in there will get me through that.

Found an enlightening article comparing User Acceptance Testing versus Usability Testing:  https://digital.gov/2014/10/06/user-acceptance-testing-versus-usability-testing-whats-the-dif/  Looks like digital.gov may be another good learning resource.