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Occup Environ Med 57:353-357 doi:10.1136/oem.57.5.353
  • Paper

Fatigue among working people: validity of a questionnaire measure

**** *** CIS20R **** ***
Checklist Individual Strength
University Hospital Nijmegen
Department of Medical Psychology
Instruction:
On the next page you find 20 statements. With these statements we wish to get an impression of how you have felt during the past two weeks. For example:
I feel relaxed
If you feel that this statement is not true at all, place a cross in the right box; like this:
 I feel relaxed yes, that is true X no, that is not true
If you feel that this statement is not true at all, place a cross in the right box; like this:
 I feel relaxed yes, that is true X no, that is not true
If you feel that this statement in not “yes, that is true”, but also not “no, that is not true”, place a cross in the box that is most in accordance with how you have felt.
 For example, if you feel relaxed, but not very relaxed, place a cross in one of the boxes close to “yes, that is true": like this:
 I feel relaxed yes, that is true X no, that is not true
Do not skip any statement and place only one cross for each statement.
1. I feel tired yes, that is true no, that is not true
2. I feel very active yes, that is true no, that is not true
3. Thinking requires effort yes, that is true no, that is not true
4. Physically I feel exhausted yes, that is true no, that is not true
5. I feel like doing all kinds of nice things yes, that is true no, that is not true
6. I feel fit yes, that is true no, that is not true
7. I do quite a lot within a day yes, that is true no, that is not true
8. When I am doing something, I can concentrate quite well yes, that is true no, that is not true
9. I feel weak yes, that is true no, that is not true
10. I don't do much during the day yes, that is true no, that is not true
11. I can concentrate well yes, that is true no, that is not true
12. I feel rested yes, that is true no, that is not true
13. I have trouble concentrating yes, that is true no, that is not true
14. Physically I feel I am in a bad condition yes, that is true no, that is not true
15. I am full of plans yes, that is true no, that is not true
16. I get tired very quickly yes, that is true no, that is not true
17. I have a low output yes, that is true no, that is not true
18. I feel no desire to do anything yes, that is true no, that is not true
19. My thoughts easily wander yes, that is true no, that is not true
20. Physically I feel in a good shape yes, that is true no, that is not true
SCORING CIS20R
For the items:2, 5, 6, 7, 8, 11, 12, 15, 20 is the scoring as follows:
yes, that is true 1 2 3 4 5 6 7 no, that is not true
For the items: 1, 3, 4, 9, 10, 13, 14, 16, 17, 18, 19is the scoring as follows:
yes, that is true 7 6 5 4 3 2 1 no, that is not true
Subsequently the four subscales are calculated by summing the respective items
subscale 1: Subjective feeling of fatigue items 1, 4, 6, 9, 12, 14, 16, 20
subscale 2: Concentration items 3, 8, 11, 13, 19
subscale 3: Motivation items 2, 5, 15, 18
subscale 4: Physical activity items 7, 10, 17

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