Nijmegen Questionnaire Test

Understand whether symptoms suggest hyperventilation beyond everyday discomfort in about 3 minutes. Answer 16 quick items to flag when breathing issues may need further evaluation.

Start Online Test

Questions: 163 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

27187 views

3105 completions

2645 likes

Scale Explorer

How the Scales are Structured

example score

35/64

Total Score (TS)

This scale sums symptom frequency to indicate the likelihood of hyperventilation-related ventilation dysregulation.

Low likelihood

High likelihood

0 – 22: Low likelihood | 23 – 64: High likelihood

A total score of 35 falls in the High likelihood range, indicating a higher probability of hyperventilation syndrome compared with scores at or below 22.

Start Online Test

just completed the test

DATA-BASED USER COHORTS

Who Usually Takes This Test?

Unexplained breathlessness symptoms

41%OF USERS

People who often feel short of breath, dizzy, tight-chested, or tingling and want to see if hyperventilation could be involved.

Anxiety and panic sufferers

34%OF USERS

People with anxiety or panic-like episodes who want to check whether their physical symptoms may be linked to breathing pattern imbalance.

Clinician screening and follow-up

25%OF USERS

Patients taking the questionnaire as part of a medical or research visit to quickly screen ventilation dysregulation and track changes over time.

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.

Total score (Ts)

Average

32.9

Normal range

23.9 — 41.8

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 screens for symptoms commonly associated with overbreathing and ventilation imbalance. It does not provide a diagnosis.

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

Completion typically takes about 3 minutes. It includes 16 items.

What types of symptoms are covered?

Items cover physical sensations linked to breathing dysregulation, such as dizziness, shortness of breath, and tingling or numbness. Symptoms are rated by frequency.

How should responses be selected?

Select the option that best reflects how often each symptom has occurred recently. Use the first response that seems accurate and avoid overthinking.

How should results be interpreted and used?

Higher scores indicate a greater likelihood of clinically relevant hyperventilation-related symptoms. Results should be considered alongside clinical evaluation and other findings.

WHAT THE TEST MEASURES

About This Assessment

Nijmegen Questionnaire Test

somatics vegetative dysfunction

This brief self-report measure screens for symptoms commonly associated with dysregulated breathing patterns. The Nijmegen Questionnaire is used to quantify the frequency of physical sensations that may co-occur with hyperventilation-related complaints.

It consists of 16 items and typically takes about 3 minutes to complete. Respondents rate how often they experience a range of somatic symptoms (e.g., dizziness, shortness of breath, tingling), supporting initial triage and helping determine whether further clinical assessment of breathing-related symptoms may be warranted.

The Nijmegen Questionnaire was developed by Jan Duivenvoorden and David H. Van Dixhoorn and is intended for screening and monitoring purposes rather than stand-alone diagnosis.

Author: David H. Van Dixhoorn, Jan Duivenvoorden

Literature: Barlow, D. H. Anxiety and its disorders: The nature and treatment of anxiety and panic. Guilford Press. 2002.; van Doorn, P., Colla, P., & Folgering, H. Een vragenlijst voor hyperventilatieklachten. De Psycholoog. 1983.

Test Question Form