Fatigue Assessment Scale (FAS) Test
Understand your current physical and mental fatigue level in about 2 minutes. Ten quick items give a clear snapshot and help track changes over time to guide care decisions.
08:30
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How the Scales are Structured
DATA-BASED USER COHORTS
Who Usually Takes This Test?
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
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See How You Compare
Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Below is a preview of how scores are typically distributed across each scale.
Fatigue Assessment Scale (FAS)
Fatigue Assessment Scale (FAS)
Average
29.5
Normal range
22.1 — 36.8
min.
10
max.
50
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Once you complete the test, your result will appear on the scale so you can see how you compare.
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SAMPLE QUESTIONS
Example Questions From the Test
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WHAT THE TEST MEASURES
About This Assessment
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Fatigue Assessment Scale (FAS) Test - Symptoms and Signs
Fatigue is a common clinical complaint, and the Fatigue Assessment Scale (FAS) provides a brief self-report measure to quantify perceived fatigue severity in everyday life. It includes 10 items and typically takes about 2 minutes to complete. The items sample physical and cognitive aspects of fatigue to support a structured snapshot of symptom burden.
Developed by Trudie Chalder and David Chalder, the Fatigue Assessment Scale (FAS) may be used in clinical or research settings to support initial assessment and to track change over time alongside other clinical information; results should be interpreted in the context of the individual’s medical history, current symptoms, and functional status.
Author: David Chalder, Trudie Chalder
Literature: Piper, B. F., Dibble, S. L., Dodd, M. J., Weiss, M. C., Slaughter, R. E., & Paul, S. M. The revised Piper Fatigue Scale: Psychometric evaluation in women with breast cancer. Oncology Nursing Forum. 1998.; Michielsen, H. J., De Vries, J., & Van Heck, G. L. Psychometric qualities of a brief self-rated fatigue measure: The Fatigue Assessment Scale (FAS). Journal of Psychosomatic Research. 2003.
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