Theme 4, usability heuristics, subtheme descriptions and supporting quotes
| Theme, percentage of sample endorsed (n) and description | Supporting quotes |
| Theme 4: usability heuristics, 100% (19) | |
| 4.1. Accessibility, 95% (18) The ability of a client to access the digital intervention at a time and place of convenience. Higher accessibility provides opportunities for the client to review and reflect on what has been learnt at a deeper level. | P10, high-range WAI-SF-C score: “Being on your own you know, in your own time and in your own safe place, your blanket, whatever you call it just allowed me personally just to open up and look at it, and then going from the start of the process to the end, … thinking positively, looking at your behaviours, looking at adding little things in and then the exercise at the end, rewarding yourself for just achieving things what I felt at the time were trivial made everything different”. |
| 4.2. Interactivity, 63% (12) An interactive digital program that is able to react to the clients input, to produce feedback. Interactive activities were perceived as more enjoyable, and promoted a degree of accountability. | P6, high working alliance: “One thing immediately comes to mind, it has to be a bit more interactive I think. The client shall we say, as well I feel should be given more feedback, the results, you know when you’re scoring yourself on those, what that’s about you know, how do they interpret that score, when you’re putting your mood in on the smartphone, what’s that about you know, who’s looking at that, who’s interpreting that”. |
| 4.3. Ease of use, 63% (12) The ease of use of the digital interface is described as a well-functioning, intuitive, digital interface which enables optimal access to the therapeutic task. | P2, high-range WAI-SF-C score: “It was really nice, I thought it was really, well very well presented I would say, and everything was just there, like for easy viewing, so you didn’t have to like go through like folders or like go deeper into the website, like it was just there, and you know, I could just easily click on what I needed to do and just follow the instructions set out on the exercises”. |
| 4.4. Aesthetic appeal, 21% (4) The appearance or appeal of the digital interface is a factor that clients use to judge the credibility of the digital intervention and which could impact their engagement to the therapeutic task. | P13, medium-range WAI-SF-C score: “Yeah, and actually it became quite a bit of work just keeping up with the calendar, sort of, I found it a bit clunky, but then I worked in I.T for sixteen years…” |
| 4.5. Self-directed, 79% (15) The process of taking responsibility for one’s own behaviour and well-being, appears to instil clients with a sense of independence and control. | P3, medium-range WAI-SF-C score: “Other times it was good kind of to do a time and also independence, kind of learning to do stuff without a therapist there…I quite liked that I could, I don’t know for me because it, I suppose it ties back into the independence thing, but because I was doing it on my own I almost proved I could do it on my own…because I feel like sometimes with a therapist you almost become like dependent on them or, it’s like being taught something, when you’re like dependent on the teacher”. |
WAI-SF-C, Working Alliance Inventory Short Form-Client.