The charts above show your scores on the eight SF-12 health dimensions, each transformed to a 0 – 100 scale (higher = better health).
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.
| # | Item | Response |
|---|---|---|
| {{ a.id }} | {{ a.text }} | {{ a.answer }} |
Health-related quality of life (HRQoL) summarises how well people perceive their physical, mental and social functioning in everyday contexts. Researchers quantify HRQoL to monitor chronic conditions, compare treatment groups or evaluate public-health programmes. Brief, validated questionnaires give rapid snapshots while keeping respondent burden low.
The RAND-derived SF-12 survey distils eight HRQoL dimensions into twelve multiple-choice items. This tool rescales every answer to a 0–100 metric, averages scores within each domain, and presents the results in an interactive radar-and-bar profile that updates instantly on your device.
Complete the survey when reviewing lifestyle goals, evaluating wellness initiatives or tracking recovery progress over time. Interpret trends rather than single scores, and consult a professional if unexpected results persist. Results do not constitute a clinical diagnosis.
The SF-12 originates from the Medical Outcomes Study and preserves the statistical validity of the longer SF-36 by selecting one or two high-loading items per domain. Each raw response is linearly transformed so that domain means align with population norms, enabling meaningful comparison across cohorts and longitudinal studies.
Processing occurs entirely in-browser through a lightweight reactive engine. A charting layer renders radar and bar plots from the computed domain array, supporting smooth animation and responsive resizing without extra network calls.
| Symbol | Meaning | Unit | Typical Range | Sensitivity |
|---|---|---|---|---|
| Rraw j | Raw item value | ordinal | 1–6 | high |
| Rmax j | Highest possible raw value | ordinal | 2–6 | n/a |
| Rmin j | Lowest possible raw value | ordinal | 1 | n/a |
| Sij | Scaled item score | points | 0–100 | medium |
| Di | Domain mean score | points | 0–100 | low |
A response of “Limited a lot” gives a 0-point contribution, reducing the Physical Functioning mean.
The algorithm is O(n) with n = 12, giving imperceptible latency. All computations use IEEE-754 double precision; rounding error is under 0.05 points. The charting layer throttles resize events for smooth animation.
The mean is the simple average of the eight domain points, giving an overall quality-of-life snapshot that is easy to track over time.
No. All answers stay solely in your browser. Closing the page erases them unless you copy the encoded URL yourself.
Yes. Copy the address bar link; it contains an anonymised code of your responses that anyone can paste to recreate the charts.
The linear 0–100 scaling is dimensionless, but cultural factors may influence how respondents interpret items. Use caution when comparing across populations.
Statistical analyses showed these items capture over 90 % of the variance explained by the longer SF-36, making the survey quicker without major information loss.