Table 5

Revision of identified items

Included PROM item/s	Revised PROM item/s Changes are italicised	Reason for revision/s
Game experience questionnaire poststudy items: The system gave error messages that clearly told me how to fix my problems. Whenever I made a mistake using the system, I could recover easily and quickly. Response options: scale of 1 (strongly agree) to 7 (strongly disagree), and N/A.	9. The system gave error messages that clearly told me how to fix my posture or movement. Response option: always, often, sometimes, rarely or never. 10. Whenever I made a movement mistake, I could recover easily and quickly. Response option: without any difficulty, with a little difficulty, with some difficulty, with much difficulty or unable to do.	Item contents and response options revised: Item contents changed to better reflect target health condition and technology category. Response options changed to match contents better, from levels of agreement to levels of frequency and capability. Chosen scales follow best practice uniform response options for frequency and capability.26
Beck depression inventory: A (Mood) 0 I do not feel sad. 1 I feel blue or sad. B (Pessimism) 0 I am not particularly pessimistic or discouraged about my future. 1a I feel discouraged about my future. C (Sense of failure) 0 I do not feel like a failure. 1 I feel I have failed more than the average person. G (Self-hate) 0 I do not feel disappointed in myself. 1a I am disappointed in myself. Response options: among a list of options, tick a statement if true.	A (Mood) 0 I felt okay. 1 I felt blue or sad. B (Pessimism) 0 I was fairly upbeat about my progress. 1a I felt pessimistic about my progress. C (Sense of failure) 0 I felt like I was succeeding fairly well. 1 I felt that I had failed more than the average person G (Self-hate) 0 I felt satisfied with myself. 1a I was disappointed in myself. Response options: among a list of options, tick a statement if true.	Item contents revised: Item contents changed to better reflect rehabilitation context of the health condition. Changed from present to past tense for consistency with other items.
Stroke-specific quality of life scale, mood items: I felt hopeless about my future. I was discouraged about my future. I had little confidence in myself. Response options: strongly agree, moderately agree, neither agree nor disagree, moderately disagree or strongly disagree.	1a. I felt hopeless about my progress. 1b. I felt hopeful about my progress. 2a. I was discouraged about my progress. 2b. I was encouraged about my progress. 3a. I had little confidence in myself. 3b. I was pretty confident in myself. Response options: among a list of options, tick a statement if true.	Item contents and response options revised: These items, similar with the Beck Depression Inventory items, could indicate how patients’ access to their PGHD may affect their mood. Item contents changed to better reflect stroke rehabilitation context. Response options changed for consistency in presenting these items with items of the Beck Depression Inventory.
Game experience questionnaire poststudy items: The information (such as online help, onscreen messages and other documentation) provided with this system is clear. It was easy to find the information I needed. The information provided for the system was easy to understand. The information was effective in helping me complete the tasks and scenarios. Response options: scale of 1 (strongly agree) to 7 (strongly disagree), and N/A.	The online help, onscreen messages and other documentation that that this system gave me made it clear to me what to do. It was easy for me to find the information I needed from the system. The information provided by the system was easy for me to understand. The information from the system helped me to complete the tasks and scenarios. Response option: scale of 1 (strongly agree) to 6 (strongly disagree), and N/A.	Item response options revised: Numeric response options revised to six, from seven, to be consistent with best practice uniform response options for rating scales.26 This also reduces cognitive burden on respondents.
System usability questionnaire: I found the product unnecessarily complex. I think that I would need the support of a technical person to be able to use this product. Response options: scale of 1 (strongly disagree) to 5 (strongly agree).	I found that the data about me were more complex than I needed. I thought that I would need the support of a technical person to be able to understand my data. Response options: among a list of options, tick a statement if true.	Item contents and response options revised: Item contents revised to reflect patient access to data. Response option type was varied to elicit patient input on acceptability of response formats.26
Game experience questionnaire after-scenario items: 3. Overall, I am satisfied with the support information (online help, messages, documentation) when completing the tasks. Response options: scale of 1 (strongly agree) to 7 (strongly disagree), and N/A.	3. Overall, I was satisfied with the way the information (online help, messages, documentation) supported me when completing the tasks. Response option: among a list of options, tick if true.	Item contents and response options revised: Item contents changed to past tense, for consistency with other items. Response option type was varied to elicit patient input on acceptability of response formats.26
Relationship change scale: 1. Within the last 4 weeks, my satisfaction with myself as a person has become: (1) much less; (2) less; (3) unchanged; (4) greater; (5) much greater.	1. Within the last 4 weeks, my satisfaction with myself as a person has become: (1) much less; (2) somewhat less; (3) unchanged; (4) somewhat more; (5) much more.	Item response option revised: Response option improved for clarity.
Game experience questionnaire poststudy item: 18. This system has all the functions and capabilities I expect it to have. Response option: scale of 1 (strongly agree) to 7 (strongly disagree), and N/A.	18. This system has shown me all rehabilitation information I expect to have about myself. Response option: true or false.	Item content and response option revised: Item changed to better reflect rehabilitation context. Response option type was varied to elicit patient input on acceptability of response formats.26

N/A, not available; PGHD, person-generated health data; PROMs, patient-reported outcome measures.