Table 2 Summary of Item level Cognitive Interview Results
Item | Concept | Attribute measureda | Understanding n (%)b | Changes |
|---|---|---|---|---|
Instructions | 16 (94) | Two sentences added as a clarification to address patient feedback | ||
Item 1 | Impact on ability to do usual household chores | Difficulty | 17 (100) | No changes |
Item 2 | Impact on ability to do activities outside of the home | Difficulty | 17 (100) | Parenthetical phrase “For example shopping or doing errands” added to provide examples |
Item 3 | Impact on ability to keep routines/schedule | Difficulty | 17 (100) | No changes |
Item 4 | Impact on ability to do Activities than require concentration | Difficulty | 14 (82) | No changes |
Item 5 | Impact on ability to do activities that require thinking clearly | Difficulty | 12 (71) | No changes |
Item 6 | Impact on ability to make yourself presentable | Difficulty | 17 (100) | Item revised to clarify the concept as “getting ready for the day” |
Item 7 | Impact on ability to interact with others | Difficulty | 17 (100) | Item and response options replaced by item on “avoiding interaction with other people” |
Item 8 | Needing to rest or lie down | Duration | 17 (100) | No changes |
Item 9 | Overall Impact on ability to do usual activities | Difficulty | 17 (100) | Response options “without any difficulty” to “unable to do” changed to “not difficult” to “extremely difficult” |
Item 10 | Impact on ability to move head | Duration | 15 (88) | No changes |
Item 11 | Impact on ability to move body | Duration | 15 (88) | No changes |
Item 12 | Impact on ability to get in and out of bed | Difficulty | 17 (100) | Modified “get in and out of bed” to “get out of bed” |
Item 13 | Impact on ability to stand up | Difficulty | 16 (94) | No changes |
Item 14 | Impact on ability to bend over | Difficulty | 17 (100) | No changes |
Item 15 | Impact on ability to walk around inside home | Difficulty | 17 (100) | No changes |
Item 16 | Impact on ability to walk at normal speed | Difficulty | 17 (100) | No changes |
Item 17 | Impact on ability to do activities needing physical effort | Difficulty | 17 (100) | No changes |