Psychology
Perceived Stress Scale
Measure your current stress level using the validated PSS-10 questionnaire.
The Perceived Stress Scale (PSS-10) is the most widely used psychological instrument for measuring subjective stress perception. Developed by Sheldon Cohen in 1983 and published in peer-reviewed literature. Answer 10 questions about feelings in the last month.
Moderate Stress
17 / 40
- interpretation
- Typical range. Consider stress management techniques for peak periods.
- comparison
- Average range (14-19)
- disclaimer
- This is a screening tool, not a clinical diagnosis
Formula and method
PSS = Sum of direct items + Sum of reversed items (items 4,5,7,8 reversed)
The PSS-10 is scored by summing all items, with items 4, 5, 7, and 8 reverse-scored (4=0, 3=1, 2=2, 1=3, 0=4). Population mean is approximately 14 (SD=6). Scores of 0-13 indicate low, 14-26 moderate, 27-40 high perceived stress.
Worked examples
Low stress profile
- Been upset because of unexpected events (0-4):
- 1
- Unable to control important things (0-4):
- 1
- Felt nervous and "stressed" (0-4):
- 1
- Felt confident to handle problems (0-4 reversed):
- 1
- Things going your way (0-4 reversed):
- 1
- Unable to cope with things to do (0-4):
- 0
- Control irritations in life (0-4 reversed):
- 1
- On top of things (0-4 reversed):
- 1
- Angered by things outside control (0-4):
- 0
- Difficulties piling up so high (0-4):
- 0
Moderate Stress: 15 / 40
High stress profile
- Been upset because of unexpected events (0-4):
- 3
- Unable to control important things (0-4):
- 3
- Felt nervous and "stressed" (0-4):
- 4
- Felt confident to handle problems (0-4 reversed):
- 3
- Things going your way (0-4 reversed):
- 3
- Unable to cope with things to do (0-4):
- 3
- Control irritations in life (0-4 reversed):
- 3
- On top of things (0-4 reversed):
- 3
- Angered by things outside control (0-4):
- 2
- Difficulties piling up so high (0-4):
- 3
Moderate Stress: 22 / 40
Assumptions and limits
- Responses reflect the past month
- Self-report accuracy is assumed
This tool provides an educational estimate. Rules, rates and personal circumstances can change the answer. Review the assumptions before relying on a result. Report a correction.
Common mistakes to avoid
- Treating PSS as a clinical diagnosis — it is a screening and research tool, not a diagnostic instrument.
- Comparing scores across different time periods without context — a score of 20 during finals week is expected; during vacation it warrants more attention.
- Not repeating the test over time — stress is dynamic; tracking monthly trends is more useful than a single measurement.
Frequently asked questions
What is a "normal" PSS score?
Population averages are approximately 14 for general adults (SD ≈ 6). College students average about 14-16. Working adults average 12-15. Scores above 20 are above the 75th percentile and suggest meaningful stress.
What should I do if I score high?
First, know that a high PSS score is a data point, not a diagnosis. Consider: regular exercise (strongest evidence for stress reduction), sleep hygiene, social connection, mindfulness meditation (8-week MBSR programs have strong evidence), and speaking with a therapist or counselor.
Is the PSS the same as anxiety?
No. Perceived stress measures how uncontrollable and overloaded you feel life is right now. Anxiety disorders are clinical conditions involving chronic, excessive worry often disconnected from actual stressors. High PSS can co-occur with anxiety but they are different constructs.
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