When aligning an question bank to an outcome, one must set "mastery for any score at or above" a certain threshold. The default in Canvas is 60%, and that feels rather low to me. For most grading scales, it would be 1% higher than failure, and I'd like to think that want more than that.
At the same time, the "man on the street" definition of mastery (which, I believe, would be something like "You know this stuff so well others would think you are an expert") may be too high a bar. I'm not sure its mastery (in that sense) that we are trying to document, so much as competency ("You have average, basically satisfactory understanding or skill").
So, I'm thinking that maybe defaulting to around 70% to 75%, the equivalent of a C, may be good. However, I'm interested in what other designers think and are doing. What do you use as your mastery score when aligning outcomes with question banks?