Table 1 Illustrative quotes for acceptability theme

Understandability

[BT12]: “It all made sense”

[BT13]: “It’s fairly straightforward and for a majority of people…Did a good job at making it clear.”

[BT11]: “It went smoothly. It was easy to comprehend what was going on.”

Enjoyability and Ease of use

[BT32]: (Q: Why would you recommend it?) “Just for its simplicity: one, two, three. It won’t take you too long…I think that it's super simplistic, super straightforward…It doesn’t take long at all, so people that have anxiety and stuff can easily do this session…The length of it’s fine. That’s actually perfect for people with anxiety like myself. I don’t like really sitting down for too long and having to answer a lot of questions. So, this is perfect…I was just like, okay, this is going by actually pretty fast.”

[BT14]: “I didn’t feel like it was long…It’s not that long… I thought it was really good, the length was good.”

[BT14]: “It’d be interesting. Very interesting because it’s definitely going to change, at least for me it would change a lot…There’s weeks where I’m here a lot, weeks where I’m out a lot, like you’re at school or looking for a job…So there’s just a lot of people that I actually talk to…you said it was going to be four times? Well, if you do…that would helpful.”

[BT14]: “It doesn’t only have to be about this. It can be about other stuff. It can be used for high school students…This is actually a very versatile thing.”

[BT31]: “I enjoyed it. It was very relaxing. I didn't really feel stressed out. And I just had surgery a couple days ago…I really enjoyed this. This was very fun…I thought I was going to dread today… but I enjoyed it. I really had fun.”

[BT12]: “I actually liked it.”

[BT14]: “I actually liked this.”

[BT32:] “It’s not really invasive, like most questionnaires would be

[BT32]: “I think I liked everything.”

Barriers to acceptability

[BT14]: “For me, I can’t sit through things like that…so it’s helpful that somebody was right there trying to help doing it.”

[BT14]: “Just how you’re saying it is like it would be when you do the two-week intervals, would be the best thing.”

[BT32:] “It’s kind of weird, especially from the angle that I was doing it. She is my case manager, so it’s even weirder to peer over her shoulder. So, I was like, um…I don’t like doing this…if I was going to be forced to do this, I would have just said anything to get it over with.”

[BT32:] “When I first moved in here, I don’t think I would have done this…Because before this I was homeless. I was not really in…anywhere, so I really didn’t communicate with anybody. Before that I was in a shelter, and even then I didn’t talk to anybody except the case manager to help me find housing. So I think it would be something that would be more appropriate if it was somebody who was here for maybe one month. Who they start making connections with here.”

[BT13]: “I’m not really too keen on documenting all that. I’d rather do it on my own than…you know, be more private about it…I know you guys are confidential everything and all that, but it’s just the way that I feel.”

[BT13]: “It’s something that’s pretty obvious that a lot of people do without even really realizing…it crosses people’s minds about how their relationships are and who they should interact with more, and who are the real supportive people and then who are the people that are just enablers and whatnot.” ([added]: “But nobody does it as thoroughly”)

[BT11]: “Maybe offering a plan, like okay, what did you not like? Asking specific questions about the graphs or whatever and then being like what can you do, who can you go to to get what you need, or just coming up with a little plan for the next two weeks to refer to… because that was me coming up with…and my best thinking got me in a homeless shelter.”