Chronic Fatigue Severity Scale Test
In about 7 minutes, see how emotional, physical, and mental fatigue may be building beyond everyday tiredness. Catch early warning signs and get clear next steps to recover and prevent burnout.
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08:30
Scale Explorer
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.
RESULTS YOU CAN ACTUALLY USE
Benchmarking
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.
Scale 4 (S4)
Average
5.7
Normal range
3.9 — 7.4
min.
0
max.
10
Majority
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.
Scale 3 (S3)
Average
7.6
Normal range
5.6 — 9.6
min.
0
max.
12
Majority
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.
Scale 2 (S2)
Average
10.9
Normal range
7.4 — 14.5
min.
0
max.
20
Majority
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.
Scale 1 (S1)
Average
15.8
Normal range
10.8 — 20.7
min.
0
max.
30
Majority
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.
Chronic Fatigue Index (CFI)
Average
21.9
Normal range
10.2 — 33.6
min.
0
max.
72
Majority
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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CLEAR ANSWERS TO COMMON QUESTIONS
Frequently Asked Questions
What does this questionnaire assess?
It screens for the severity of ongoing fatigue and related strain. Items cover emotional, physical, and cognitive fatigue.
Who is this questionnaire intended for?
It is intended for adults reporting persistent tiredness or reduced performance. It is also used for preventive screening in high-demand work settings and clinical checkups.
How long does it take and how many items are included?
Completion time is about 7 minutes. The questionnaire contains 36 items.
How should responses be selected?
Select the option that best matches the current or recent typical state. Answer all items and avoid overthinking individual questions.
How should results be interpreted and what are the next steps?
Results indicate the level of fatigue and whether it may be affecting functioning. Elevated scores support adding recovery measures and may warrant medical or mental health evaluation if symptoms persist or worsen.
WHAT THE TEST MEASURES
About This Assessment
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Chronic Fatigue Severity Scale Test - Symptoms and Signs
Persistent fatigue may reflect more than transient tiredness and can warrant structured assessment. The Chronic Fatigue Severity Scale is a self-report measure designed to screen the severity and functional impact of ongoing fatigue symptoms. It includes 36 items and typically takes about 7 minutes to complete.
Items generally sample fatigue-related experiences across physical, emotional, and cognitive domains to support a multidimensional profile of symptom burden. Results from the Chronic Fatigue Severity Scale can help inform clinical interviewing, triage for further medical or psychological evaluation, and monitoring of change over time in occupational health or general clinical settings. The measure is attributed to David A. Kosinski.
Author: David A. Kosinski
Literature: Jason, L. A., Evans, M., Brown, M., & Porter, N. Chronic fatigue syndrome: A review of epidemiology, diagnosis, and treatment. Journal of Clinical Psychology. 2010.
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