PSS-10 · Perceived stress
How stressed am I? Free Perceived Stress Scale (PSS-10) test
Stress Self-Test
The most-cited stress questionnaire in psychology, free online.
Reviewed by Komel Kaur, Psychotherapist
Last reviewed 9 July 2026
10
Questions
~3
Minutes
Free
Always
What the PSS-10 measures
The PSS-10 (Perceived Stress Scale, 10-item version) measures the degree to which situations in your life over the past month feel unpredictable, uncontrollable, and overloading. It is a measure of subjective stress appraisal - how stressful your life feels - rather than of specific stressful events.
Each item is scored 0-4, giving a total between 0 and 40. Four items are reverse-scored (asking about control, coping, and confidence), so the scale captures both stress overload and the felt sense of coping capacity.
The PSS-10 is deliberately not tied to any particular life event. This makes it useful across contexts - work stress, caregiving, illness, transitions - because what it captures is the appraisal of demand exceeding resources.
Where the PSS-10 came from
The Perceived Stress Scale was developed in 1983 by Sheldon Cohen, Tom Kamarck, and Robin Mermelstein at Carnegie Mellon University, and published in the Journal of Health and Social Behavior. It was created because existing stress measures focused on stressful events, missing the crucial subjective element - two people facing the same event can appraise it very differently. The 10-item version was refined from the original 14-item scale for improved factor structure. It is now the most widely used stress instrument in the world and appears in tens of thousands of studies.
How the PSS-10 is scored
The PSS-10 gives a total score from 0 to 40. There is no formal clinical cut-off; instead, tertile bands are typically used for interpretation.
| Score | Severity | What it usually means |
|---|---|---|
| 0-13 | Low perceived stress | Life demands feel manageable relative to your coping resources. |
| 14-26 | Moderate perceived stress | A meaningful level of felt stress - worth attending to coping, recovery, and demands. |
| 27-40 | High perceived stress | High felt stress. Sustained scores at this level are linked to physical and mental-health risks and often warrant structural changes plus support. |
How the PSS-10 is used in clinical practice
The PSS-10 is used clinically as a baseline stress measure and as a repeat measure to track whether therapy, workload changes, or lifestyle adjustments are reducing felt stress.
It is also widely used in medical research to study the link between perceived stress and outcomes such as cardiovascular disease, infection risk, sleep disruption, and mental-health onset.
In workplace and public-health contexts it is used to identify populations under sustained stress load and to evaluate the impact of interventions (mindfulness programs, workload changes, employee assistance).
Limitations to keep in mind
- ·The PSS-10 is not diagnostic. Stress is not itself a psychiatric disorder - high scores signal risk and are worth attention, but they do not confirm an anxiety, depressive, or trauma condition.
- ·It measures the past month. Someone chronically stressed for years may score similarly to someone in a single hard month.
- ·It reflects appraisal, not events. Two people in objectively similar situations can produce very different scores based on personality, resources, and history.
- ·There is no universal clinical cut-off. Tertile bands are commonly used but are conventions, not established thresholds.
Before you start
- · Find a quiet few minutes - answer honestly, not how you wish you felt.
- · There are no right or wrong answers. Pick what feels closest.
- · This is a screening tool, not a diagnosis.
- · If anything brings up something heavy, support is at the end.
Common questions about the PSS-10
What is the PSS-10?
The PSS-10 is the 10-item Perceived Stress Scale, the most widely used measure of subjective stress worldwide. It asks how unpredictable, uncontrollable, and overloading your life has felt in the past month.
What is a normal PSS-10 score?
Scores of 0-13 are commonly considered low perceived stress, 14-26 moderate, and 27-40 high. Population averages typically sit in the mid-teens depending on the sample.
Does the PSS-10 diagnose a condition?
No. Stress is not a diagnosis. The PSS-10 measures felt stress and is often used alongside depression and anxiety measures to build a fuller picture.
How often should I retake the PSS-10?
Because it asks about the past month, meaningful re-administration is monthly. Retaking it more often mostly captures noise.
How is the PSS-10 different from the PSS-14 or PSS-4?
The PSS-10 is the standard version. The PSS-14 was the original, later shortened for better factor structure. The PSS-4 is an ultra-brief version for very rapid screening.
Is the PSS-10 free?
Yes. The Perceived Stress Scale is free to use for non-commercial research and clinical purposes.
Reviewed by Komel Kaur, Psychotherapist
Last reviewed 9 July 2026
Cohen S, Kamarck T, Mermelstein R. A global measure of perceived stress. J Health Soc Behav. 1983;24(4):385-396.