Related Experiment Video
Updated: Sep 15, 2025

Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression
Published on: April 26, 2024
Investigation of the Psychometric Properties of the Persian Version of the Functioning Assessment Short Test (FAST)
Kiomars Najafi1, Robabeh Soleimani1, Mohammad Hasan Novin1
1Department of Psychiatry, Faculty of Medicine, Kavosh Cognitive Behavior Sciences and Addiction Research Center, Guilan University of Medical Sciences, Rasht, Iran.
Background:
This study assessed the Persian version of the Functioning Assessment Short Test (FAST) in bipolar disorder patients to determine its reliability and validity, as currently no specialized tools are available to evaluate functional impairment in this population.
Methods:
A cross-sectional study was conducted with 240 bipolar disorder patients at Shafa Hospital in Rasht in 2023. The Persian version of the FAST was translated and reviewed for content validity, reliability, and factor analysis. Data analysis was done using IBM SPSS version 26, and confirmatory factor analysis (CFA) was performed with LISREL version 8.8.
Findings:
The results indicated a content validity ratio (CVR) above 0.62. To assess convergent validity, the Short Form Health Survey (SF-36) was used, yielding a direct and significant correlation (P<0.001, r=0.675). The FAST exhibited a Cronbach's alpha of 0.953, indicating robust internal consistency. The intraclass correlation coefficient (ICC) ranged from 0.74 to 0.98, signifying excellent reliability. The correlation coefficient between scores from repeated tests demonstrated strong reliability. CFA was employed to confirm the dimensions of the FAST, and the construct validity was considered satisfactory.
Conclusion:
The Persian version of the FAST demonstrated strong psychometric properties in the study, making it useful for evaluating rehabilitation interventions, assessing medication effects, and supporting research efforts.
Related Concept Videos
Self-Report Tests of Personality
Bipolar Disorder
Cattell's 16 Personality Factors
In contrast, source traits are the...
Five-Factor Theory of Personality
Openness reflects creativity, curiosity, and openness to new experiences. Individuals scoring high in openness are imaginative, have a wide range of interests, and are independent...

