How can a scrum master evaluate his work?
As the scrum master is a mentor and guide for a team, the team trusts the scrum master to lead them on the right path to "being" agile. But how can a scrum master be sure of the same? Each team is different and there's no benchmark (Or is there?) to measure one's success in doing the same?
Personally, due to this vagueness/lack of clarity in measurability, I find it difficult to decide on SMART goals for myself.
Many Agile coaches use the Scrum Master Checklist as a self-assessment tool:
What literature suggests, is to assign a score from 1 to 5 to each of the questions in the checklist and monitor your progress.
The list is also available in Google docs:
It is important to note that the list was first published in 2007 by Michael James, and has been referenced by many authors. Indicatively:
In literature, you will find many self-assessments. I suggest you read the article.