Table 1 Key revisions made to sunlight exposure diary based on cognitive debriefing interviews
Original wording of questions | Key revisions |
|---|---|
No instructions provided | Added instructions |
Have you experienced any reactions to light today? | Revised to ask about early warning symptoms and full reactions |
N/A | Added question to ask whether the reaction was new or continuation from prior day |
If yes, please indicated on the scale below how bad your pain was from the reaction | Revised to ask about pain from a full reaction at its worst |
Revised response options (removed some of the labels on the pain scale) | |
Did you spend any time outdoors today? | “Direct or indirect” added to clarify that respondent should consider all sources of sunlight |
If yes, please enter the time period that you were in direct sunlight (Each box represents 15 min) | Question revised to ask about minutes in sunlight (direct and indirect) between 6:00 am and midnight |
Revised from recording in 15 min blocks to exact minutes | |
Tested a version recording stop/start times but based on feedback total number of minutes used instead | |
If yes, please enter the time period that you were in shade | Item omitted—respondents did not find it relevant |
N/A | Added questions about symptoms experienced (e.g., “feelings of warmth”, “sensitivity to touch”, “tingling”, “burning”, etc.) and the severity of each symptom (mild, moderate, severe) |
Questions use 24-h recall period | Changed to insert day/date (e.g., Monday, February 27) |