Table 2 Content validity: cognitive debrief summary
From: Qualitative and quantitative validation of the FACIT-fatigue scale in iron deficiency anemia
FACIT-fatigue Item | Correctly Interpreted | Relevant to IDA | Example Quotes |
|---|---|---|---|
1. I feel fatigue | 14/15 | 14/15 | “I feel tired and worn out… your body’s like - ugh…” |
2. I feel weak all over | 15/15 | 14/15 | “I get really weak and drained… like someone just sucked all the energy out of you” “I just take my time moving around, and work at getting myself built back up” |
3. I feel listless (washed out) | 14/15 | 13/15 | “Feeling lifeless and you don’t want to do anything” |
4. I feel tired | 15/15 | 15/15 | “I just want to sit back on the couch and do nothing -just you know lack of energy” |
5. I have trouble starting things because I am tired | 15/15 | 15/15 | “So I had to get up and force myself…So literally you have to like mentally coach, coax myself to move forward.” |
6. I have trouble finishing things because I am tired | 15/15 | 15/15 | “I will go lay down…I say I will do it later, and I might not get back to it” |
7. I have energy | 15/15 | 15/15 | “I have energy would mean, you know, I don’t feel tired, you know … I get up and I have no problem getting started, I go through the day doing whatever I have to do and I can go, keep going, you know… I’m not describing myself” |
8. I am able to do my usual activities | 15/15 | 15/15 | “No, I’m not able to do my usual stuff”… “I need help with the yard work…” |
9. I need to sleep during the day | 15/15 | 15/15 | “I’ll sleep during the day—if I have to run errands, if I’m taking my husband to an appointment, I literally fall asleep, you know, sitting in the chair waiting—anywhere I can take a nap, I’ll take a nap.” |
10. I am too tired to eat | 15/15 | 12/15 | “I get that way sometimes. Typically if I get that way it’s because…I’m running out of energy by that time”. |
11. I need help doing my usual activities | 15/15 | 13/15 | “…sometimes I do get help from my husband and then even times at work, like close colleagues, I will receive assistance from them” |
12. I am frustrated by being too tired to do the things I want to do | 15/15 | 15/15 | “Yeah, right, because you know, who would think to actually get like frustrated because you’re tired. Yeah, I am. I don’t think people realize that it’s something that you can’t really control.” |
13. I have to limit my social activity because I am tired | 15/15 | 15/15 | “with the last date I went, I think, my attention span began to wane because I was tired. I was like— oh, my God, you’re sitting there thinking I want to go home.” |