3 -- Confident. I could perform this task right now.
2 -- Somewhat confident. I understand the task and have a vague idea of what is required. I could probably perform the task after looking a few things up and I have a good idea where I would go to get this information.
1 -- Not confident. I don't understand the task, am largely unfamiliar with it, or have little idea how to start, or have tried and failed at this task before and feel like I got nowhere.
There are a lot of questions, but it goes quickly once you get a hang of the rating scale. We anticipate that most people can complete this in 15 minutes or less.