PSS: Perceived Stress Scale
10-item measure of perceived stress — the degree to which situations feel uncontrollable, unpredictable, and overwhelming. Score 0–40 across three bands: low, moderate, high. Cohen, Kamarck & Mermelstein (1983).
PSS-10 Score Interpreter
Indicates a meaningful level of perceived stress that may benefit from monitoring or further assessment.
10 items rated 0–4 for the past month. Items 4, 5, 7, and 8 are reverse-scored before summing. Higher scores indicate greater perceived stress.
| Total score | Interpretation |
|---|---|
| 27+ | High perceived stressScores in this range are often associated with significant distress; clinical evaluation is recommended. |
| 14–26 | Moderate perceived stressIndicates a meaningful level of perceived stress that may benefit from monitoring or further assessment. |
| 0–13 | Low perceived stressSuggests situations generally feel manageable and controllable in the past month. |
Cohen S, Kamarck T, Mermelstein R (1983). The PSS developers did not publish diagnostic cutoffs; the low/moderate/high ranges shown reflect a commonly used clinical convention. Educational reference only — not a diagnostic tool.
The PSS-10 is a 10-item validated measure of perceived psychological stress, how often situations feel uncontrollable, unpredictable, or overwhelming. Scores 0–40 across three levels. The most widely used psychological stress measure in health research.
What is the Perceived Stress Scale?
The Perceived Stress Scale (PSS) was developed by Sheldon Cohen, Tom Kamarck, and Robin Mermelstein at Carnegie Mellon University in 1983. It was the first validated measure of global perceived stress, designed to assess how often people feel their lives are uncontrollable, unpredictable, and overloaded. It measures stress as a subjective experience rather than the presence of specific stressors.
The PSS-10 (10-item version) is the most commonly used form. Each item is rated on a 5-point frequency scale from 0 (Never) to 4 (Very often), reflecting the past month. Four positively worded items (4, 5, 7, and 8) are reverse-scored before summing. Total scores range from 0 to 40, with higher scores indicating greater perceived stress.
The PSS is in the public domain and free for clinical and research use without permission. It is the most widely used psychological stress measure in health research globally, with associations with depression, anxiety, burnout, and immune function. It is commonly used alongside the PHQ-9 and GAD-7 to capture the full burden of psychological distress.
Rate how often you felt each way in the past month.
Educational reference only. Cannot diagnose or replace clinical evaluation.
PSS Score Interpretation
Cohen et al. (1983) normative cutoffs. Score is the sum of all 10 items after reverse-scoring items 4, 5, 7, and 8.
How PSS Scoring Works
Four items measure effective coping and are reverse-scored before summing.
Negatively Worded (Items 1–3, 6, 9–10)
Scored directly: Never=0, Almost Never=1, Sometimes=2, Fairly Often=3, Very Often=4.
These items ask about feeling upset, out of control, overwhelmed, or that difficulties are piling up.
Positively Worded, Reverse-Scored (Items 4, 5, 7, 8)
Reversed before summing: Never=4, Almost Never=3, Sometimes=2, Fairly Often=1, Very Often=0.
These items ask about feeling in control, able to handle problems, and on top of things, effective coping indicators.
Measure Stress Alongside Mood in HiBoop
PSS-10 alongside PHQ-9 and GAD-7, automated scoring and longitudinal tracking for every patient.
Frequently Asked Questions
What is a high score on the PSS-10?
A total score of 27–40 is commonly regarded as indicating high perceived stress, meaning the respondent frequently feels overwhelmed, unable to control important things in their life, and overloaded. This range reflects a widely used clinical convention rather than a cutoff derived from a single published validation study. Scores should always be interpreted alongside clinical context.
How is the PSS-10 scored?
Each of the 10 items is rated 0 (Never) to 4 (Very Often) for the past month. Four positively worded items (items 4, 5, 7, and 8) are reverse-scored — a response of 4 becomes 0, 3 becomes 1, and so on — before all items are summed. Total scores range from 0 to 40, with higher scores indicating greater perceived stress.
Is the PSS self-report or clinician-administered?
The PSS-10 is a self-report questionnaire completed by the respondent without clinician involvement in scoring. It typically takes 5–10 minutes to complete and does not require specialized training to administer, making it well suited to routine clinical and research settings.
Can the PSS diagnose anxiety or depression?
No. The PSS measures perceived psychological stress — how often situations feel uncontrollable or overwhelming — and is not designed to diagnose any condition. Although PSS scores correlate with depression, anxiety, and burnout measures, a high score indicates elevated perceived stress requiring further clinical evaluation, not a diagnosis.
References
- 1.Cohen S, Kamarck T, Mermelstein R. A global measure of perceived stress. J Health Soc Behav. 1983;24(4):385-396.View source
- 2.Andreou E, Alexopoulos EC, Lionis C, Varvogli L, Gnardellis C, Chrousos GP, Darviri C. Perceived Stress Scale: reliability and validity study in Greece. Int J Environ Res Public Health. 2011;8(8):3287-3298.View source
- 3.Perera MJ, Brintz CE, Birnbaum-Weitzman O, et al. Factor structure of the Perceived Stress Scale-10 (PSS) across English and Spanish language responders in the HCHS/SOL Sociocultural Ancillary Study. Psychol Assess. 2017;29(3):320-328.View source
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Last reviewed: Jun 3, 2026
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