Table 1.

Interview items for evaluating barriers and facilitators for the use of and adherence to the internet-based interventions.

Item number	Interview item
1a	How would you rate the training offer overall? What do you think of the offer?
1.1b	To what extent was the internet-based training suitable for you and your needs?
1.2b	To what extent were there aspects of the internet-based training that were not suitable for you and your needs?
2a	What helped you to “stick with” the internet-based training?
2.1c	Were there certain aspects that made it easier for you to continuously participate in the internet-based training?
2.2b	What personal circumstances made it easier for you to participate in the internet-based training?
2.3b	What professional circumstances made it easier for you to participate in the internet-based training?
3a,d	If you have ever been unable to engage with the internet-based training: what prevented you from engaging with the training and its content?
3a,e	You dropped out of the internet-based training after lesson (add number). What prevented you from engaging with the training and its content?
3.1c	What else prevented you from engaging with the content of the internet-based training?
3.2b	Specifically, was there anything that bothered you about the guided internet-based training that made you not want to engage with it?
3.3b	What personal circumstances prevented you from participating in the internet-based training?
3.4b	What professional circumstances prevented you from participating in the internet-based training?
3.5b,e	You have just described various problems. What was the decisive reason that you dropped out of the training?
4a	You just described that in (paraphrase situation) it was difficult for you to engage with the internet-based training. What would have helped you engage with the internet-based training in that situations?
4.1c	What else helped you?
4.2b	What else could have helped you in the internet-based training itself?
4.3b	Was there anything in your personal environment that could have helped you or someone who could have supported you?
4.4b	What role do friends and family play in supporting you to participate in the training?
4.5b	What positive reactions do you remember?
4.6b	What negative reactions were there?
4.7b	Was there anything in your professional context that could have helped you or someone who could have supported you?
5a	Imagine you would participate in an internet-based training again. Imagine also that you could wish for an internet-based training that would be exactly suitable for your needs. What would the ideal internet-based training look like for you?
5.1c	How would the internet-based training need to be designed to make you feel that you are basically capable of doing the internet-based training regularly and stick with it until completion?
5.2c	How would your private and professional environment have to be organized to make you feel that you are basically capable of doing the internet-based training regularly and stick with it until completion?

^aMain question.

^bMemo.

^cHang-on.

^dFilter question for completers.

^eFilter question for noncompleters.