Document Type : Original Article
Authors
1
Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
2
Department of Psychology and Educational Sciences, Faculty of Humanities, Arak University, Arak, Iran
3
Student Research Committee, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
4
Department of Psychology, University of Michigan, Ann Arbor, Michigan, United States
5
Department of Clinical Psychology, Faculty of Psychology and Education, Kharazmi University, Tehran, Iran
6
Department of Psychology and Counseling, Faculty of Humanities, University of Hormozgan, Bandar Abbas, Iran
7
Center for Health Related Social and Behavioral Sciences Research, Shahroud University of Medical Sciences, Shahroud, Iran
8
Study and Treatment of Circadian Rhythms Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
9
Department of Neuroscience, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
10.22122/ahj.2022.196410.1283
Abstract
Background: The Yale Food Addiction Scale version 2.0 (YFAS 2.0) is used for the assessment of food addiction (FA). This research
intended to evaluate the validity of the Persian translation of the questionnaire and to investigate the psychological properties and
the association between FA and anthropometric indices.
Methods: In a sample of 473 nonclinical participants, FA, binge eating, and objectively measured anthropometric indices were
assessed. Internal consistency, convergent, and validity of the PYFAS 2.0 were examined. Also, the factor structure (confirmatory
factor analysis following the 11 diagnostic indicators in addition to the significant distress) and the construct of the scale were
evaluated.
Findings: The frequencies of mild, moderate, and severe FA based on PYFAS 2.0 were 0.2%, 10%, and 5.5%, respectively. The
findings supported a one-factor structure. The confirmatory factor analysis revealed a good construct validity (RMSEA=0.043,
χ2=76.38, df=41, χ2
(CMIN)/df=1.862, GFI=0.975, AGFI=0.957, IFI=0.986, RFI=0.958, ECVI=0.319, TLI=0.978). For both the
diagnostic and symptom count versions, the PYFAS 2.0 presented acceptable internal consistency (IC) (Kuder-Richardson 20=0.99
and McDonald omega=0.91).
Conclusion: The PYFAS 2.0 was a psychometrically sound instrument in an Iranian non-clinical population. This questionnaire can
be used to study FA in Persian non-clinical populations. Future research should study the psychometric characteristics of this scale
in high-risk groups.
Keywords
)