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Intolerance of Uncertainty Scale (IAS) Test

Understand how you handle uncertainty and where anxiety spikes in just 3 minutes. Get fast, actionable insight to guide coping strategies, counseling goals, or fit for high-ambiguity roles.
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Questions: 133 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
23372 views
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How the Scales are Structured
example score
7/9
Tolerance of Uncertainty (ToU)
Measures how comfortably a person can function and stay productive in ambiguous or unpredictable situations.
Low
Moderate
High
0 – 4: Low | 5 – 7: Moderate | 8 – 9: High
A score of 7 indicates a moderate tolerance for uncertainty, meaning unclear situations are generally manageable and can be approached constructively, though they may still feel somewhat challenging at times.
example score
6/9
Intolerance of Uncertainty (IoU)
Measures how strongly a person tends to feel anxious and seek control when facing ambiguous or unpredictable situations.
Low
Moderate
High
0 – 3: Low | 4 – 6: Moderate | 7 – 9: High
A score of 6 indicates a moderate level of intolerance of uncertainty, suggesting noticeable discomfort with ambiguity and a tendency to prefer clear rules and predictability, especially under stress.
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DATA-BASED USER COHORTS
Who Usually Takes This Test?
Anxious in unclear situations
41%OF USERS
People who feel stressed when plans change or answers aren’t immediate take it to understand their uncertainty triggers and coping style.
Therapy and self-growth seekers
34%OF USERS
People working on anxiety, perfectionism, or control issues use it to spot patterns and track progress in handling the unknown.
Decision-heavy professionals
25%OF USERS
Managers, entrepreneurs, and specialists facing risk and ambiguity take it to see whether uncertainty pushes them to avoid or engage.
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.
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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.
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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.
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Clarify, reflect, and explore right away. Talk through your outcomes, ask questions, and explore meanings in a calm, non-diagnostic dialogue environment.
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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.
Tolerance for Uncertainty (TfU)
Average
5.3
Normal range
4 — 6.7
min.
0
max.
9
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.
Intolerance of Uncertainty (IoU)
Average
5.1
Normal range
3.7 — 6.5
min.
0
max.
9
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.
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CLEAR ANSWERS TO COMMON QUESTIONS
Frequently Asked Questions

Any questions left?

What does this questionnaire measure?
It measures reactions to unclear or unpredictable situations. It provides separate scores for difficulty tolerating uncertainty and comfort with uncertainty.
How long does it take and how many items are included?
It takes about 3 minutes to complete. It contains 13 statements.
How should responses be selected?
Select the option that best matches typical feelings and behavior in uncertain situations. Answer all items based on general patterns rather than a single event.
How are results interpreted?
Higher intolerance scores indicate greater distress and avoidance when outcomes are unclear. Higher tolerance scores indicate greater comfort and flexibility under uncertainty.
Can results be used as a diagnosis?
No, the results are not diagnostic. They are used to describe a trait that may inform counseling, research, or decision-making when uncertainty-related stress is relevant.
WHAT THE TEST MEASURES
About This Assessment
Intolerance of Uncertainty Scale, IAS Test

Intolerance of Uncertainty Scale (IAS) Test

uncertaintytolerance

This self-report measure assesses individual differences in responses to ambiguous or unpredictable situations. The Intolerance of Uncertainty Scale (IAS) is commonly used to support clinical case formulation and research on worry and anxiety-related processes.

The instrument includes 13 items and typically requires about 3 minutes to complete. Respondents rate statements describing reactions to uncertainty; scores are interpreted as reflecting the degree of difficulty tolerating uncertain outcomes rather than providing a standalone diagnosis.

When clinically indicated, the Intolerance of Uncertainty Scale (IAS) can be used alongside other symptom and functional measures to inform treatment planning and to monitor change over time. The scale is attributed to M. J. Dugas and R. N. Carleton.

Author: M. J. Dugas, R. N. Carleton
Literature: Carleton, R. N. The intolerance of uncertainty construct in the context of anxiety disorders: Theoretical and practical perspectives. Expert Review of Neurotherapeutics. 2012.; Dugas, M. J., & Robichaud, M. Cognitive-behavioral treatment for generalized anxiety disorder: From science to practice. Routledge. 2007.; Budner, S. Intolerance of ambiguity as a personality variable. Journal of Personality. 1962.
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