Data from participant feedback questionnaire post-treatment
| Strongly disagree | Mostly disagree | Neither agree nor disagree | Mostly agree | Strongly agree | ||
| I disliked the initial screening questionnaire that I filled in. | AT | 11 | 1 | |||
| Placebo | 6 | 1 | 6 | |||
| I didn’t mind having my speech recorded over the telephone*. | AT | 1 | 1 | 3 | 3 | |
| Placebo | 1 | 1 | 2 | 4 | 3 | |
| Over the time that I was involved, I had to spend too long having assessments done at University of East Anglia | AT | 12 | ||||
| Placebo | 10 | 2 | 1 | |||
| I disliked having my speech recorded each time I visited UEA | AT | 7 | 2 | 1 | 1 | 1 |
| Placebo | 8 | 4 | 1 | |||
| The computer task was easy to do. | AT | 1 | 11 | |||
| Placebo | 1 | 5 | 7 | |||
| The computer task took up too much time. | AT | 10 | 2 | |||
| Placebo | 8 | 5 | ||||
| I was happy to be randomly allocated to a version of computer session even though I understand that it might have been the placebo version.† | AT | 1 | 1 | 10 | ||
| Placebo | 4 | 9 |
*The telephone screen was subsequently omitted.
†At this stage the participant had not been informed of their allocation.