Table 3. Questionnaire responses regarding the usefulness of NOTSSdk feedback* .

Item	Trainees (n=40)	Supervisors (n=40)
	Median (range)	Median (range)
It was useful for me to get feedback on my non-technical skills using NOTSSdk (for trainees) or It was useful for my teaching to use NOTSSdk for feedback on the trainees’ non-technical skills (for supervisors)	4.0 (3-5)	4.0 (3-5)
The relevant points were covered in the feedback	4.0 (3-5)	3.5 (2-5)
There was time pressure for this feedback session	3.0 (1-5)	3.0 (1-5)
This operation was difficult for me/the trainee	3.0 (1-5)	3.0 (1-5)

* Scale: 1= strongly disagree; 2= disagree; 3= neutral; 4=agree; 5=strongly agree.