Amazing how hard it is to find out info about the primary dependent variable in that study.
Based on reading Chalder 1993 paper, and some other papers, this is what I think it is.
1. Do you have problems with tiredness?
2. Do you need to rest more?
3. Do you feel sleepy or drowsy?
4. Do you have problems starting things?
5. Are you lacking in energy?
6. Do you have less strength in your muscles?
7. Do you feel weak?
8. Do you have difficulty concentrating?
9. Do you have problems thinking clearly?
10. Do you make slips of the tongue when speaking?
11. How is your memory?
0 - Less than usual
1 - No more than usual
2 - More than usual
3 - Much more than usual
But I'm a little perplexed because someone on PR just listed the following, excluding "thinking clearly" and including "difficult to find the right word"
Chalder Fatigue Scale - contains 11 questions
• Do you have problems with tiredness?
• Do you need to rest more?
• Do you feel sleepy or drowsy?
• Do you lack energy?
• Do you have trouble starting things?
• Do your muscles have less strength?
• Do you feel weak?
• Do you have difficulty concentrating”
• Do you find it more difficult to find the correct word?
• Do you make slips of the tongue when speaking?
• How is your memory?http://forums.phoenixrising.me/showthread.php?13096-Please-help-evaluate-the-Chalder-Fatigue-Scale
Does anybody know for sure? I'm writing a critique of the PACE paper and want to make sure I get this right.