O'Reilly logo
  • anna williams thinks this is interesting:

Learnability can be measured using almost any performance metric over time, but the most common ones are those that focus on efficiency, such as time on task, errors, number of steps, or task success per minute. As learning occurs, you expect to see efficiency improve.

From

Cover of Measuring the User Experience, 2nd Edition

Note

DAWSON REPORT - mention in discussion that this would've been good to do