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. 2022 Apr 7;11(2):427–450. doi: 10.1556/2006.2022.00013

Table C-1.

Fit indices for valid bifactor models of (potential) Internet-use disorders measured by ACSID-11

ACSID-11 model CFI TLI SRMR RMSEA χ2/df
Frequency
Gaming 0.996 0.993 0.028 0.036 1.58
Online buying-shopping 0.997 0.995 0.019 0.031 1.90
Social-networks use 0.994 0.991 0.025 0.047 2.91
Online gambling 0.997 0.996 0.029 0.058 1.68
Intensity
Gaming 0.996 0.993 0.028 0.035 1.55
Online gambling 0.997 0.995 0.029 0.056 1.62

Notes. Model df = 35; Sample sizes varied for gaming (n = 440), online shopping (n = 944), social-networks use (n = 854), and online gambling (n = 200); ACSID-11 = Assessment of Criteria for Specific Internet-use Disorders, 11-items. Bifactor models for online buying-shopping (intensity), pornography use (frequency & intensity), and social-networks use (intensity) could not be identified.