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Checklist for Individual Strength - Fatigue (CIS)
Please visit this website for more information about the instrument: Checklist for Individual Strength - Fatigue (CIS)
Supplemental: Myalgic encephalomyelitis/Chronic fatigue syndrome (ME/CFS)
Exploratory: Amyotrophic Lateral Sclerosis (ALS)
Short Description of Instrument
Construct measured: Multidimensional aspects of fatigue
Generic vs. disease specific: Generic
Means of administration: Paper and pencil
Intended respondent: Patient
# of items: CIS20-R (20 items) and CIS- Subjective fatigue (8 items)
# of subscales and names of sub-scales: N/A
# of items per sub-scale: N/A
The Checklist for Individual Strength-Fatigue (CIS) is a 20-item self report questionnaire that captures 4 domains of fatigue including subjective experience of fatigue, reduction in motivation, reduction in activity and reduction in concentration. The CIS has demonstrated satisfactory psychometric properties, including high internal consistency and the ability to discriminate healthy individuals.
This measure assesses fatigue severity (subjective experience of fatigue); concentration problems (mental fatigue); reduced motivation and reduced activity level.
It was developed for use in CFS in Holland. It is available in English, Dutch, Swedish and Korean.
Respondents rate the extent to which each statement is true for them in the past two weeks on a seven-point Likert scale ranging from 1 = "Yes, that is true" to 7 = "No, that is not true."
Consists of 8 items on subjective fatigue, 5 on concentration, 4 on motivation and 3 on activity. Scores are added for each sub-scale.
Advantages: The CIS has been well validated amongst CFS patients and has been widely used in this population, and discriminates between different diseases.
Limitations: 17% false positive rates.
Psychometric Properties:
The original four-factor structure of the CIS was replicated. Internal consistency (a = 0.84 – 0.95) and test-retest reliability (r = 0.74 – 0.86) of the subscales were high. Correlations with other fatigue scales were moderate to high.
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Vercoulen JH, Hommes OR, Swanink CM, Jongen PJ, Fennis JF, Galama JM, van der Meer JW, Bleijenberg G. The measurement of fatigue in patients with multiple sclerosis. A multidimensional comparison with patients with chronic fatigue syndrome and healthy subjects. Arch Neurol. 1996;53(7):642-649.
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Document last updated April 2020