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A Self-administered Version of the Functioning Assessment Short Test for Use in Population-based Studies: A Pilot
Christoph Riegler1,2, Silke Wiedmann1,3, Viktoria Rücker1
1Institute for Clinical Epidemiology und Biometry, University of Würzburg, Würzburg, Germany.
Clinical Practice and Epidemiology in Mental Health : CP & EMH
|October 22, 2020
Summary
A new self-administered German version of the Functioning Assessment Short Test (FAST) shows moderate reliability for assessing functional impairment in the general population. This adapted FAST scale offers a promising tool for broader clinical and research applications.
Area of Science:
- Psychometrics
- Clinical Psychology
- Health Services Research
Background:
- The Functioning Assessment Short Test (FAST) is an established interviewer-administered scale for assessing functional impairment.
- Original development focused on psychiatric patient populations.
Purpose of the Study:
- To adapt the FAST for self-administration in the general population.
- To evaluate the psychometric properties of the self-administered German FAST in a pilot study.
Main Methods:
- German translation and adaptation of the FAST for self-administration.
- Pilot study involving participants from the STAAB and BiDirect cohorts.
- Assessed reliability via self- vs. proxy-assessment agreement (ICC).
- Evaluated construct validity through correlations with PHQ-9, GAD-7, SF-12, and regression analyses including chronic back pain (CBP).
Main Results:
- Moderate reliability was observed (ICC = 0.50).
- FAST scores significantly correlated with depression (PHQ-9), anxiety (GAD-7), and mental quality of life (SF-12).
- Chronic back pain and SF-12 mental subscale were significant predictors in multivariable analysis.
Conclusions:
- The self-administered German FAST demonstrates moderate psychometric properties.
- The adapted scale appears applicable for assessing functional impairment in the general population.
