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Psychometric validation of the Persian Bergen Social Media Addiction Scale using classic test theory and Rasch models
Hong Kong Polytech University, Peoples R China.
Jonköping University, Sweden.
Linköping University, Department of Medical and Health Sciences, Division of Community Medicine. Linköping University, Faculty of Medicine and Health Sciences.
Nottingham Trent University, England.
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2017 (English)In: Journal of Behavioral Addictions, ISSN 2062-5871, E-ISSN 2063-5303, Vol. 6, no 4, p. 620-629Article in journal (Refereed) Published
Abstract [en]

Background and aims: The Bergen Social Media Addiction Scale (BSMAS), a six-item self-report scale that is a brief and effective psychometric instrument for assessing at-risk social media addiction on the Internet. However, its psychometric properties in Persian have never been examined and no studies have applied Rasch analysis for the psychometric testing. This study aimed to verify the construct validity of the Persian BSMAS using confirmatory factor analysis (CFA) and Rasch models among 2,676 Iranian adolescents. Methods: In addition to construct validity, measurement invariance in CFA and differential item functioning (DIF) in Rasch analysis across gender were tested for in the Persian BSMAS. Results: Both CFA [comparative fit index (CFI) = 0.993; Tucker-Lewis index (TLI) = 0.989; root mean square error of approximation (RMSEA) = 0.057; standardized root mean square residual (SRMR) = 0.039] and Rasch (infit MnSq = 0.88-1.28; outfit MnSq = 0.86-1.22) confirmed the unidimensionality of the BSMAS. Moreover, measurement invariance was supported in multigroup CFA including metric invariance (Delta CFI = -0.001; Delta SRMR = 0.003; Delta RMSEA = -0.005) and scalar invariance (Delta CFI = -0.002; Delta SRMR = 0.005; Delta RMSEA = 0.001) across gender. No item displayed DIF (DIF contrast = -0.48 to 0.24) in Rasch across gender. Conclusions: Given the Persian BSMAS was unidimensional, it is concluded that the instrument can be used to assess how an adolescent is addicted to social media on the Internet. Moreover, users of the instrument may comfortably compare the sum scores of the BSMAS across gender.

Place, publisher, year, edition, pages
AKADEMIAI KIADO RT , 2017. Vol. 6, no 4, p. 620-629
Keywords [en]
adolescence; confirmatory factor analysis; differential item functioning; measurement invariance; social media addiction; Rasch analysis
National Category
Substance Abuse
Identifiers
URN: urn:nbn:se:liu:diva-144273DOI: 10.1556/2006.6.2017.071ISI: 000418792800017PubMedID: 29130330OAI: oai:DiVA.org:liu-144273DiVA, id: diva2:1173616
Available from: 2018-01-12 Created: 2018-01-12 Last updated: 2018-01-31

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