Table 2 Themes, sub-themes and example quotes for fidelity of delivery

I. Providers’ knowledge

1) Prior knowledge

“Well I can’t really say for the others but we’re all really experienced […] A bit more confident and thinking I can do this.” (DAW 3, Site A)

2) Skills to deliver PRIDE

“I think from the training point of view […] I came away thinking I can fill those forms in now but I can’t deliver that. So it may need to be more about the delivery, the actual how you want it delivering, the key points, and this is so much information and maybe it would be useful for like bullet points, key points, to be pulled out a bit.” (DAW 2, Site A)

II. Providers’ personal attributes

3) Beliefs about PRIDE as part of job

“It’s something that we are actually doing. We do encourage people to do things that they maybe didn’t do before and to look at what they enjoy doing or they used to enjoy previously and try and engage with that so once you realise that it makes it a lot less daunting.” (DAW 1, Site A)

4) Personal characteristics

“I think that’s just my personality. Because I kind of felt if I don’t do it that way then I’m going to miss something and I was a little bit conscious of the checklist that we had to do afterwards, thinking I want a tick in every one of the boxes. Again that’s my personality.” (DAW 1, Site A)

5) Feelings about delivery

“I was quite nervous because of the recording, I was quite nervous just in case I was missing something that was important. I think after the first session I felt a bit better. Like okay, we’ve actually set a goal, we’ve done all this, I think I talk about herself, what she likes, so that’s fine.” (DAW 6, Site D)

III. Adaptation of PRIDE in relation to participants’ needs

6) Ease of adaptation with fidelity

“It was trying […] and thinking right, there is no right and then there is no wrong […] it’s about people’s choice, what is stated in a manual, when you’re working with dementia, cannot always be followed […] So, we can only deliver it how we feel is best for that person when we arrive […] That’s my opinion anyway.” (DAW 4, Site D)

7) Participant engagement

“Well my service users did [help delivery] because they were quite keen. They definitely helped with the momentum without having to try and give too much encouragement and go and see them and things had happened […] So that helped.” (DAW 1, Site A)

IV. Logistical considerations

8) Organisational constraints

“I mean it’s something I’d like to do but, like I said, it’s quite difficult when you’ve got other job commitments. I found it a lot easier once I started working part time […] when I was with the [Organisation 1] it was full time plus extra hours […] So I’d be working till half four then going to do an intervention, getting home at half six seven with the traffic. That was really draining. My new job, because I was working part time there was a lot more flexibility. And even just delivering intervention during the day like the traffic made a massive difference” (DAW 8, Site B)

9) Social support for delivery

“We’ve used each other’s experience of, you know, what’s worked and what hasn’t. […] I think to begin with, because [Name of DAW] was the first one who did it, we were all like listening to how she’d delivered it and that was really useful and helpful. So I think between us we’ve sort of taken little bits of each other’s experience.” (DAW 2, Site A)