Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/80289
Title: Psychometric evaluation of the Persian Internet Disorder Scale among adolescents
Authors: Lin, CY 
Ganji, M
Pontes, HM
Imani, V
Brostrom, A
Griffiths, MD
Pakpour, AH
Keywords: Internet addiction
Internet
Internet Disorder Scale
Addiction
Persian
Issue Date: 2018
Publisher: Akademiai Kiado Rt
Source: Journal of behavioral addictions, Sept. 2018, v. 7, no. 3, p. 665-675 How to cite?
Journal: Journal of behavioral addictions 
Abstract: Background and aims: Given the growing epidemiological research interest concerning Internet addiction, brief instruments with a robust theoretical basis are warranted. The Internet Disorder Scale (IDS-15) is one such instrument that can be used to quickly assess the Internet addiction in an individual. However, only two language versions of the IDS-15 have been developed. This study translated the IDS-15 into Persian and examined its psychometric properties using comprehensive psychometric testing.
Methods: After ensuring the linguistic validity of the Persian IDS-15, 1,272 adolescents (mean age = 15.53 years; 728 males) completed the IDS-15, Depression Anxiety Stress Scale (DASS), Internet Gaming Disorder Scale - Short Form (IGDS9-SF), and the Bergen Social Media Addiction Scale (BSMAS). Confirmatory factor analysis (CFA), Rasch models, regression analysis, and latent profile analysis (LPA) were carried out to test the psychometric properties of the Persian IDS-15.
Results: Both CFA and Rasch supported the construct validity of the Persian IDS-15. Multigroup analysis in CFA and differential item functioning in Rasch indicated that male and female adolescents interpreted the IDS-15 items similarly. Regression analysis showed that the IDS-15 correlated with IGDS9-SF and BSMAS (Delta R-2= .12 and .36, respectively) is stronger than the DASS (Delta R-2= .03-.05). LPA based on IDS-15 suggests three subgroups for the sample. Significant differences in depression, anxiety, IGDS9-SF, and BSMAS were found among the three LPA subgroups.
Conclusion: The Persian IDS-15 has robust psychometric properties as evidenced by both classical test theory and Rasch analysis.
URI: http://hdl.handle.net/10397/80289
ISSN: 2062-5871
EISSN: 2063-5303
DOI: 10.1556/2006.7.2018.88
Rights: This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted use, distribution, and reproduction in any medium for non-commercial purposes, provided the original author and source are credited, a link to the CC License is provided, and changes –if any–are indicated.
© 2018 The Author(s)
The following publication Lin, C.Y., Ganji, M., Pontes, H.M., Imani, V., Brostrom, A., Griffiths, M.D., & Pakpour, A.H. (2018). Psychometric evaluation of the Persian Internet Disorder Scale among adolescents. Journal of behavioral addictions, 7 (3), 665-675 is available at https://dx.doi.org/10.1556/2006.7.2018.88
Appears in Collections:Journal/Magazine Article

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