Home
Psychological tests
Multidimensional Fatigue Inventory (MFI-20)

Multidimensional Fatigue Inventory (MFI-20) Test

Understand whether long-lasting tiredness is mainly physical, mental, or motivational in about 4 minutes. Get a clear, 20-item snapshot to guide care, rehab, or chronic fatigue tracking.

Start Online Test

Questions: 204 minutes

Hi! My name is Freudly, i am an AI therapist, I will give you an interpretation of the test after you complete it.

08:30

October 2, 2025

October 2, 2025
Material has been updated

October 2, 2025
Material has been published

27591 view

2640 completions

2295 likes

Scale Explorer

How the Scales are Structured

example score

16/20

Physical Fatigue (PF)

Physical asthenia measures the severity of physical fatigue, weakness, and reduced physical performance.

Low

Moderate

High

4 – 9: Low | 10 – 14: Moderate | 15 – 20: High

A score of 16 falls in the High range, suggesting pronounced physical fatigue and reduced physical stamina.

example score

12/20

Reduced Motivation (RM)

Measures the degree of reduced motivation and loss of drive to start or persist with tasks.

Low decrease

Moderate decrease

High decrease

4 – 9: Low decrease | 10 – 14: Moderate decrease | 15 – 20: High decrease

A score of 12 indicates a moderate decrease in motivation, suggesting some reduction in interest and drive for everyday tasks.

example score

10/20

Reduced Activity (RA)

Assesses the extent to which a person’s daily activity level and initiative have decreased due to fatigue.

Low reduction

Moderate reduction

High reduction

4 – 9: Low reduction | 10 – 14: Moderate reduction | 15 – 20: High reduction

A score of 10 falls in the Moderate reduction range, suggesting a noticeable but not severe decrease in daily activity and initiative.

example score

11/20

General Fatigue (GF)

Measures overall fatigue and weakness reflecting a person’s general energy and vitality.

Low

Moderate

High

4 – 9: Low | 10 – 14: Moderate | 15 – 20: High

A score of 11 falls in the Moderate range, suggesting a noticeable but not extreme level of overall tiredness and reduced energy.

example score

69/100

Asthenia (A)

Assesses the severity of asthenic symptoms such as fatigue, weakness, and reduced work capacity.

Low

Moderate

High

20 – 46: Low | 47 – 73: Moderate | 74 – 100: High

A score of 69 falls in the Moderate range, suggesting a noticeable level of asthenic symptoms such as fatigue and reduced work capacity.

example score

10/20

Mental Fatigue (MF)

Psychic asthenia measures the severity of mental fatigue, concentration difficulties, and reduced cognitive efficiency.

Low

Moderate

High

4 – 9: Low | 10 – 14: Moderate | 15 – 20: High

A score of 10 falls in the Moderate range, suggesting a noticeable but not severe level of mental fatigue and concentration strain.

Start Online Test

just completed the test

DATA-BASED USER COHORTS

Who Usually Takes This Test?

People with persistent tiredness

41%OF USERS

They feel drained most days and want to understand whether their fatigue is mainly physical, mental, or motivation-related.

Recovery and rehab patients

34%OF USERS

They are coming back from illness, injury, or surgery and need a quick snapshot of which fatigue domain is holding them back.

Clinicians and researchers monitoring fatigue

25%OF USERS

They use a brief questionnaire to track fatigue patterns over time and compare changes across different interventions or groups.

BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.

RESULTS YOU CAN ACTUALLY USE

What You’ll See After You Finish the Test

Scale Results
— Explained Clearly

Your scores across each test scale, translated into plain, usable insights. Not just numbers, but what they actually mean for your daily life, emotional state, and overall well-being.

AI-Powered
Interpretation

A structured, clinically grounded explanation. Our AI analyzes patterns and relationships between scales to provide a coherent interpretation — without alarmist language.

Statistical
Comparison

See how you compare to others. Your scores are placed in a statistical context, showing percentiles and trends based on anonymized platform data to help you understand what`s typical.

Practical
Recommendations

Actionable guidance tailored to your profile. Receive clear, realistic suggestions you can apply immediately — focused on coping, self-regulation, and realistic next steps.

AI-Detected
Insights

Key patterns you might not notice on your own. Surfacing subtle connections in your responses that help you better understand what may be driving your current results.

Discuss with
an AI Psychologist

Clarify, reflect, and explore right away. Talk through your outcomes, ask questions, and explore meanings in a calm, non-diagnostic dialogue environment.

Start Online Test

Used in 52+ countries

Benchmarking

See How You Compare

Once you finish the test, your results will be compared with real-world data from people in your country.
Below is a preview of the benchmarks we use to place your score in context.

Physical asthenia (Pa)

Average

12.2

Normal range

9.5 — 15

min.

max.

majority

This curve shows how scores are typically distributed.
Once you complete the test, your result will appear here so you can see where you land.

Decreased motivation (Dm)

Average

9.8

Normal range

7.5 — 12

min.

max.

majority

This curve shows how scores are typically distributed.
Once you complete the test, your result will appear here so you can see where you land.

Reduced activity (Ra)

Average

8.2

Normal range

5.9 — 10.5

min.

max.

majority

This curve shows how scores are typically distributed.
Once you complete the test, your result will appear here so you can see where you land.

General Asthenia (GA)

Average

10.2

Normal range

8.1 — 12.2

min.

max.

majority

This curve shows how scores are typically distributed.
Once you complete the test, your result will appear here so you can see where you land.

Asthenia Scale (AS)

Average

43.1

Normal range

33.3 — 52.8

min.

max.

100

majority

This curve shows how scores are typically distributed.
Once you complete the test, your result will appear here so you can see where you land.

Psychic Asthenia (PA)

Average

9.3

Normal range

7.1 — 11.6

min.

max.

majority

This curve shows how scores are typically distributed.
Once you complete the test, your result will appear here so you can see where you land.

Start Online Test

Featured On

Rated 4.8/5 by Our Customers

“Freudly really helped me discover parts of my personality I hadn’t noticed before. It strengthened the areas where I needed to grow and made me feel more grounded and confident in the parts that already worked well.”

— Emma C., US

“I wanted to understand how serious my ADHD is, and now I finally do. I also realized I need to work on my self-esteem. It has been low for a long time, and that makes daily life harder than it should be.”

— Mateo R., CA

“Reading each question felt like someone really understood me. Even though I’ve already dealt with much of this, reflecting still helped me learn something new about myself.”

— Caroline F., US

“The process is simple. The test covers everything you need, and you’ll get a clear breakdown of your results. For just a few dollars, it’s a great value.”

— Klara N., CZ

“I kept thinking there might be a small chance, but now I know for sure. The questions were easy to understand, and the whole process was straightforward.”

— Bruno M., BR

“I really enjoyed this experience. I learned a lot, and it helped me make sense of my thoughts and the feeling I’ve had for a long time that I may have grown up with undiagnosed ADHD.”

— Alice B., FR

“Great platform — the insights were genuinely meaningful!”

— Daniel W., DE

“Everything was easy to follow. The tools you get at the end are genuinely helpful for self-growth, and the price is very reasonable. I really appreciate that.”

— Sofia M., ES

“Surprisingly accurate — honestly didn’t expect it to nail things so well.”

— Adir B., IL

“There are lots of different tests to pick from, and the price is surprisingly low for how much insight you get.”

— Olivia W., CA

“I was pleasantly surprised when I read the results. It was as if someone had sorted out my messy thoughts and given me useful tips to help me speak with more confidence.”

— Grace O., IE

“It was really solid, very detailed, and it actually helped me make sense of a lot of things.”

— Carla T., TT

“I was really impressed with the report. It was clear, thoughtful, and it reflected things I’ve been noticing about myself.”

— Jade H., US

“The questions made me think deeply and helped me become more self-aware.”

— Brooke S., US

“Reading through most of the questions made me feel understood. Although I’ve already worked through some of these issues, the questions still gave me useful insights and helped me learn more about myself.”

— Ryan M., US

“I usually take one or two tests each month, and this has become a good way for me to see how I’m doing.”

— Lucas W., US

“Most of the time, my results are in the 90 to 98th percentile compared to others. It really makes me feel like there’s something unique about me.”

— Ethan C., US

“I tried out some of the AI’s suggestions, and to be honest, they worked much better than I thought they would. Maybe this thing really is smarter than me.”

— Reece D., AU

Trusted by 22k+ Users Worldwide

CLEAR ANSWERS TO COMMON QUESTIONS

Frequently Asked Questions

Any questions left?

What does this questionnaire measure?

It measures fatigue across five areas: general fatigue, physical fatigue, reduced activity, decreased motivation, and mental fatigue. Scores indicate which areas are most elevated.

How long does it take to complete and how many items are included?

It includes 20 items and typically takes about 4 minutes to complete.

What time period should be considered when answering?

Answer based on recent experience, using the timeframe stated in the item wording. If no timeframe is stated, use how things have been lately.

How should responses be selected?

Select the response option that best matches the current level of fatigue or energy for each statement. Use the full range of options and avoid leaving items blank when possible.

How are results used?

Results are used to describe patterns of fatigue and to track change over time in clinical or research settings. They do not provide a diagnosis by themselves.

WHAT THE TEST MEASURES

About This Assessment

Subjective Fatigue Assessment Scale, MFI-20 Test

Multidimensional Fatigue Inventory (MFI-20) Test

weakness neuronalization

Fatigue can be multifactorial, and the Multidimensional Fatigue Inventory (MFI-20) is a brief self-report measure designed to characterize fatigue across several domains. It helps differentiate patterns of physical, mental, and motivational fatigue experiences.

The instrument includes 20 items and is typically completed in about 4 minutes. Item content samples common fatigue-related complaints, supporting domain-level scoring that can inform clinical documentation and treatment planning. Smets, E. is commonly cited in relation to its development.

In clinical and research settings, the Multidimensional Fatigue Inventory (MFI-20) may be used to monitor fatigue severity and profile over time, including in medical illness, recovery, or rehabilitation contexts, as part of a broader assessment of symptoms and functioning.

Author: Smets, E.

Literature: Smets, E. M. A., Garssen, B., Bonke, B., & De Haes, J. C. J. M. The Multidimensional Fatigue Inventory (MFI) psychometric qualities of an instrument to assess fatigue. Journal of Psychosomatic Research. 1995.

Test Question Form