Seasonal Affective Disorder Test

Understand whether shifts in mood and energy may follow a seasonal pattern in about 10 minutes. Get a clear snapshot across 67 questions plus a results summary and next steps for support and self-care.
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Questions6710 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
March 25, 2026
March 25, 2026
Material has been updated
152 views
8 completions
40 likes
Verified by Daniel Hall
Psychologist with 25 years of experience
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How the Scales are Structured

example score
17/NaN
Functional Impact (FI)
Assesses how much seasonal mood and energy symptoms interfere with daily functioning across work or school, relationships, self-care, and routines.
Low impact
Moderate impact
High impact
0NaNLow impact7NaNModerate impact14NaNHigh impact
A score of 17 indicates high functional impact, suggesting symptoms are significantly disrupting day-to-day responsibilities and routines.
example score
16/20
Seasonal Pattern (SP)
Measures how consistently your mood and energy changes follow a seasonal cycle, typically worse in fall/winter and better in spring/summer.
Low seasonal pattern
Moderate seasonal pattern
High seasonal pattern
06Low seasonal pattern713Moderate seasonal pattern1420High seasonal pattern
A score of 16 indicates a high seasonal pattern, suggesting your symptoms tend to follow a clear and consistent seasonal cycle.
example score
13/30
Symptom Severity (SS)
Measures the overall intensity of SAD-like symptoms such as low mood, fatigue, sleep/appetite changes, and reduced motivation over the recent seasonal period.
Low
Moderate
High
010Low1120Moderate2130High
A score of 13 falls in the Moderate range, suggesting a noticeable but not extreme level of SAD-like symptoms during this seasonal period.
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DATA-BASED USER COHORTS

Who Usually Takes This Test?

Winter Mood Shifts
41%OF USERS
People who notice their mood, energy, sleep, or appetite worsen in fall/winter and improve in spring/summer take it to see if the pattern fits common SAD signs.
Low Energy and Motivation
34%OF USERS
People feeling unusually tired, unmotivated, or withdrawn use it to check whether these changes might be linked to seasonal light and routine shifts.
Support and Self-Care Seekers
25%OF USERS
People considering therapy, light exposure habits, or lifestyle changes take it to get a simple summary and ideas for next steps to discuss with a professional.
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
RESULTS YOU CAN ACTUALLY USE

Scale Results
— Explained Clearly
Your scores across each test scale are translated into plain, usable insights. You won’t just get numbers — you’ll learn how your results impact your daily life, emotional state, and overall well-being.
AI-Powered
Interpretation
You’ll receive a structured, clinically-grounded explanation. Our AI analyzes patterns and relationships between scales to provide a coherent interpretation, without exaggerated language.
Statistical
Comparison
See how your results compare to others. Anonymized platform data is used to create a percentile scale, which identifies whether your results are typical.
Practical
Recommendations
You’ll receive clear, actionable guidance tailored to your profile. These easy-to-implement suggestions focus on coping, self-regulation, and realistic next steps.
AI-Powered
Insights
Get insights on behavioral and thought patterns you might not notice on your own. By uncovering subtle connections between your responses, you’ll better understand what may be driving your current results.
Discuss with
an AI Therapist
Clarify, reflect, and explore your results right away. Talk through your experience, ask questions, and explore meanings in a calm, non-diagnostic dialogue.
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Used in 52+ countries
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.
Functional Impact (FI)
Average
9.6
Normal range
6.512.8
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.
Seasonal Pattern (SP)
Average
10.4
Normal range
6.614.1
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.
Symptom Severity (SS)
Average
13.3
Normal range
8.717.9
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.
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CLEAR ANSWERS TO COMMON QUESTIONS

Frequently Asked Questions

What does this self-check measure?
It screens for mood and energy changes that may follow a seasonal pattern. Items cover low mood, sleep, appetite or cravings, fatigue, motivation, and changes across fall/winter versus spring/summer.
How long does it take and how many items are included?
Estimated completion time is about 10 minutes. The self-check includes 67 questions.
How should responses be selected?
Answer based on typical experiences during the relevant season and over recent years, not a single unusual week. Select the option that best matches overall severity or frequency.
Do the results provide a diagnosis?
No; results are informational and do not confirm or rule out any condition. Consider consulting a licensed mental health professional for assessment and care.
What should be done if there are thoughts of self-harm or suicide?
Seek immediate help from emergency services or a local crisis hotline. Do not wait for results or attempt to manage these symptoms alone.
WHAT THE TEST MEASURES
About This Assessment

Seasonal Affective Disorder Test - Symptoms and Signs

Take a quick Seasonal Affective Disorder (SAD) self-check to explore whether your mood and energy changes may follow a seasonal pattern. This quiz asks about common signs such as low mood, sleep changes, appetite or cravings, fatigue, motivation, and how symptoms shift across fall/winter versus spring/summer. You’ll get a simple summary of your results and suggested next steps for support and self-care. This is not a diagnosis or medical advice—consider talking with a licensed mental health professional.

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