Perceived Stress Scale – PSS-4
A brief 4-item self-report scale measuring the degree to which situations in one's life are appraised as stressful.
Scale Development & Technical Details
Scale Overview
The Perceived Stress Scale – PSS-4 was developed by Sheldon Cohen, Tom Kamarck, Robin Mermelstein (1983). It is designed to measure Perceived Stress. The scale is intended for use with General adult population.
Scale Structure
This instrument consists of 4 items.
Response Format
Respondents rate each item using a custom response format.
Response anchors: 0 = Never, 1 = Almost Never, 2 = Sometimes, 3 = Fairly Often, 4 = Very Often.
The scale includes 2 reverse-scored items to reduce acquiescence bias.
Scoring
Items are summed to produce a total score.
Total scores range from 0 to 16. Interpretation guidelines:
- Low perceived stress: 0 – 5
- Moderate perceived stress: 6 – 10
- High perceived stress: 11 – 16
Psychometric Properties
Internal Consistency: The scale has demonstrated good to excellent internal consistency with reported Cronbach’s alpha values of 0.60 – 0.72.
Administration
The scale is self-administered and typically takes approximately 2 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.