The charts above show your scores on the eight SF-36 health dimensions, each transformed to a 0–100 scale (higher = better health). Scores closer to the centre of the radar indicate poorer perceived health in that domain.
This self-report instrument does not diagnose disease. If you are concerned about any aspect of your health, consider discussing these results with a qualified health-care professional.
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The Short-Form 36 (SF-36) questionnaire is a benchmark instrument for gauging health-related quality of life across physical, mental, and social dimensions. By scoring eight distinct domains, clinicians and researchers compare groups, evaluate interventions, and track longitudinal change without invasive testing.
This online version streamlines the 36 items into a responsive survey, transforms raw answers to a 0–100 scale, and visualises outcomes on an interactive radar profile and comparative bar chart. All calculations run locally, preserving confidentiality while giving near-instant feedback.
Complete the survey to track recovery after surgery, monitor chronic-condition management, or benchmark personal wellness goals. Answer based on the last four weeks for consistent trending.
Results do not constitute a clinical diagnosis.
The SF-36 operationalises perceived health through item groups empirically derived from factor-analytic studies. Each item’s ordinal response is linearly transformed so that the lowest perceived health maps to 0 and the highest to 100, producing interval-scaled scores suitable for arithmetic operations and parametric statistics. A lightweight reactive engine orchestrates state, while a charting layer renders vector graphics that resize fluidly.
| Symbol | Meaning | Unit | Typical Range | Sensitivity |
|---|---|---|---|---|
| r | Raw item response index | integer | 1 – 6 | linear |
| t | Transformed item value | score | 0 – 100 | high |
| S | Domain mean score | score | 0 – 100 | medium |
| M | Overall mean of eight domains | score | 0 – 100 | low |
| n | Items per domain | count | 2 – 10 | structure |
Ten items yield transformed totals of 720; dividing by ten returns a domain score of 72, indicating above-average physical capacity.
All routines execute in O(n) time, where n is the number of responses. Transforms use IEEE-754 double precision, providing ±0.05 stability over the 0–100 range. The charting layer renders SVG paths for scalability, and the URL encoder keeps share links under 80 characters. No external API calls are made, ensuring offline resilience.
Gather a quiet five-minute window and follow this concise flow:
A higher value indicates better perceived health within that particular domain and contributes positively to the overall mean.
No. All computations occur locally, and responses remain solely in your browser unless you share the encoded link.
Yes. Reload the page or clear the URL parameter to start fresh without residual answers.
Scores use the standard 0–100 transformation, so you may compare them with published population averages in academic literature.
Consult a qualified professional before altering medication, exercise, or lifestyle; the survey is informational only.