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Updated: Mar 31, 2026

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning
Published on: August 29, 2025
A new questionnaire for measuring quality of life - the Stark QoL
1Medical Psychology and Medical Sociology, Clinic for Psychosomatic Medicine and Psychotherapy, Universitätsmedizin Mainz, Johannes Gutenberg Universität, Duesbergweg 6, 55128, Mainz, Germany. hardt@uni-mainz.de.
Objective:
The Stark questionnaire measures health-related quality of life (QoL) using pictures almost exclusively. It is supplemented by a minimum of words. It comprises a mental and a physical health component.
Methods:
A German sample of n = 500 subjects, age and gender stratified, filled out the Stark Qol questionnaire along with various other questionnaires via internet.
Results:
The physical component shows good reliability (Cronbach's alpha = McDonalds Omega = greatest lower bound = .93), the mental component can be improved (Cronbach's alpha = .63, McDonalds Omega = .72, greatest lower bound = .77). Confirmatory factor analysis shows a good fit (Bentlers CFI = .97). Construct validity was proven.
Conclusion:
The Stark QoL is a promising new development in measuring QoL, it is a short and easy to apply questionnaire. Additionally, it is particularly promising for international research.
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