Assessment-Description

The AQoL-30 is a multidimensional questionnaire consisting of 30 questions aimed at evaluating individuals’ quality of life in various areas. This questionnaire covers five dimensions:
Independence
Relationships
Pain
Mental Health
Senses
The AQoL-30 was developed to provide a broad and comprehensive tool for measuring quality of life, based on both biomedical and psychosocial health approaches. Participants are asked to respond to questions related to their daily lives and the physical and psychological aspects of their experiences.

Data Analysis and Usage

Responses to the AQoL-30 are evaluated using a Likert scale, with options ranging from “Never” to “Always,” depending on the frequency or intensity of symptoms experienced by the participant. These scores can then be used to generate an overall quality of life score, as well as individual scores for each of the five dimensions.
The tool is versatile and can be used in a variety of populations, such as:
Patients with chronic illnesses (e.g., cancer, diabetes).
Elderly individuals living in care facilities.
The general population to identify issues in quality of life.
The data collected from the AQoL-30 can be statistically analyzed, using methods such as correlation analysis, analysis of variance (ANOVA), or multivariate techniques to identify factors affecting quality of life.

Purpose

The objective of the AQoL-30 is to measure individuals’ quality of life with accuracy and consistency, aiding in the improvement of healthcare delivery. With this tool, healthcare professionals can identify areas where patients need additional support and assess the impact of treatments.

Calibration

The AQoL-30 is calibrated using psychometric methods based on Item Response Theory (IRT). Scores are converted to a scale where higher values indicate better quality of life. Each of the five dimensions provides a sub-score, which contributes to the overall quality of life score.

References

Hawthorne, G., Richardson, J., & Osborne, R. (1999). “The Assessment of Quality of Life (AQoL) Instrument: A psychometric measure of health-related quality of life.” Quality of Life Research, 8(3), 209-224.
Richardson, J., Iezzi, A., Khan, M. A., & Maxwell, A. (2014). “Validating the Assessment of Quality of Life (AQoL)-8D instrument in patients with severe mental health conditions.” Australian and New Zealand Journal of Psychiatry, 48(4), 371-381.
Maxwell, A., Ozmen, M., & Iezzi, A. (2016). “Psychometric properties of the Assessment of Quality of Life 6D (AQoL-6D) and 8D (AQoL-8D).” Value in Health, 19(5), 572-580.