Quality of life is not one question
The World Health Organization defines quality of life as a person's perception of their position in life, in the context of their culture and value system, and in relation to their goals, expectations, standards and concerns. The same document draws a line under what that is not: quality of life cannot be equated with health status, lifestyle, life satisfaction, mental state or well-being.
That definition shapes the questionnaire. Instead of one score for how you feel, the WHOQOL-BREF gives four: physical health, psychological state, social relationships, and environment.
What the 26 items cover
The first two items stand alone. They ask you to rate your quality of life overall and your satisfaction with your health. The other 24 items cover the four domains, and each one comes from a separate facet of the longer WHOQOL-100. The reference period is the past two weeks, and the answer options are five-point scales with wording that changes from item to item (how much, how often, how satisfied, how good).
| Domain | Items | What it asks about |
|---|---|---|
| Physical health | 7 | Daily activities, dependence on medication, energy and fatigue, mobility, pain, sleep, work capacity. |
| Psychological | 6 | Body image, negative and positive feelings, self-esteem, beliefs, thinking and concentration. |
| Social relationships | 3 | Personal relationships, social support, sexual activity. |
| Environment | 8 | Money, safety, access to health and social care, home, information, leisure, physical surroundings, transport. |
Three items are worded negatively: pain preventing you from doing what you need to do (3), needing medical treatment to function (4), and how often you have negative feelings (26). They are reversed before scoring, so that more pain or more medical dependence lowers the score rather than raising it.
Where the four domains came from
The WHOQOL project started with a 100-item instrument covering 24 facets, built from focus groups in 15 field centres chosen to differ in industrialisation, health services, family structure and religion. The short form was assembled from data contributed by 20 field centres in 18 countries: one item per facet, plus the two overall items.
The original framework grouped the 24 facets into six domains. Structural equation modelling on the field trial data pointed to four instead, and the BREF was built on that four-domain structure. If you read older quality of life papers that report six domains, that is the WHOQOL-100, not the BREF.
How the scoring works
A domain score is the mean of its items multiplied by 4, which puts it on the 4 to 20 scale used by the full WHOQOL-100. Converting further to a 0 to 100 scale uses (score minus 4) times 100/16.
This site reports each domain as a raw sum of its items, so physical health runs from 7 to 35, psychological from 6 to 30, social relationships from 3 to 15, and environment from 8 to 40. To compare your domain score with published norms on the 4 to 20 scale, divide the sum by the number of items and multiply by 4. The total across the 24 domain items runs from 24 to 120.
| Total | Transformed | Reading |
|---|---|---|
| 24 to 71 | 0 to 50 | Below average quality of life |
| 72 to 95 | 51 to 75 | Moderate |
| 96 to 120 | 76 to 100 | Good |
How it holds up
In the Chinese validation of the 26-item version, internal consistency for the whole instrument was 0.89. The psychological, social and environment domains came in at 0.76, 0.72 and 0.78; physical health was lower at 0.67, which the authors linked to how varied its items are. Confirmatory factor analysis gave a marginally acceptable fit to the four-factor model (CFI 0.909, RMSEA 0.088). Of the 24 domain items, 20 correlated at least 0.40 with their own domain score, which is the usual benchmark for item convergence.
A study of 760 Serbian medical students found similar numbers: 0.896 for the whole scale, all domains above 0.70 except social relationships at 0.533. That last figure is worth remembering. Three items is a thin basis for a score, and social relationships is the least stable of the four domains.
Comparing your scores with published data
The Chinese validation reported domain means on the 4 to 20 scale: physical 13.69, psychological 14.11, social relationships 12.33, environment 14.56. The same study found that the Chinese sample scored relatively low against international data, with about 5% of men and 16% of women at risk for poor quality of life.
Two things follow from that. First, a domain score in the low teens is ordinary rather than alarming. Second, the environment domain tends to score high in most samples, partly because it asks about practical circumstances rather than feelings, so a low environment score usually points to something concrete that can be changed.
Take the test
The CheckPsych version uses the 26 items, takes about 10 minutes, and reports the four domain scores plus a total with a band. It is not a diagnostic instrument, and it does not measure symptoms in detail. If pain, sleep or energy is dragging your physical health score down, that is a conversation to have with a doctor rather than a psychological one.
References
The WHOQOL Group. (1998). Development of the World Health Organization WHOQOL-BREF quality of life assessment. Psychological Medicine, 28(3), 551-558.
The WHOQOL Group. (1998). The World Health Organization Quality of Life Assessment (WHOQOL): Development and general psychometric properties. Social Science & Medicine, 46(12), 1569-1585.
Jovanović, V., et al. (2019). Psychometric properties of the World Health Organization's Quality of Life (WHOQOL-BREF) questionnaire in medical students (PMC6955708).
Disclaimer: this article and the WHOQOL-BREF are for education and self-reflection. They are not a diagnosis. Quality of life scores reflect your circumstances and your expectations of them, and both change. If a low score on any domain points to a problem you cannot shift on your own, that is a reason to seek support, not a label to carry.