Assessment of Quality of Life Instrument – AQoL
A multi-attribute utility instrument designed to measure health-related quality of life across five dimensions.
Scale Development & Technical Details
Scale Overview
The Assessment of Quality of Life Instrument – AQoL was developed by G. Hawthorne, J. Richardson, R. Osborne (1999). It is designed to measure Health-Related Quality of Life. The scale is intended for use with Adults.
Scale Structure
This instrument consists of 15 items organized into 5 factors/subscales: Illness, Independent living, Social relationships, Physical senses, Psychological well-being.
| Factor / Subscale | Items | N |
|---|---|---|
| Illness | 1,2,3 | 3 |
| Independent living | 4,5,6 | 3 |
| Social relationships | 7,8,9 | 3 |
| Physical senses | 10,11,12 | 3 |
| Psychological well-being | 13,14,15 | 3 |
Response Format
Respondents rate each item using a custom response format.
Response anchors: 0 = A (No impairment / Best health state), 1 = B (Mild impairment), 2 = C (Moderate impairment), 3 = D (Severe impairment / Worst health state).
Scoring
Items are scored by subscale, with each subscale sum representing a distinct dimension.
Total scores range from 0 to 45. Interpretation guidelines:
- Minimal impact on quality of life: 0 – 15
- Moderate impact on quality of life: 16 – 30
- Severe impact on quality of life: 31 – 45
Administration
The scale is self-administered and typically takes approximately 5 minutes to complete. It can be administered individually or in group settings. No special training is required for administration.