Development and Validation of the TikTok Addiction Scale-Short Form (TTAS-SF)
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OBJECTIVE
To develop and validate a short version of the TikTok Addiction Scale, i.e. the TikTok Addiction Scale-Short Form (TTAS-SF).
METHOD
Construct validity of the TTAS-SF was assessed through corrected item–total correlations and confirmatory factor analysis. Concurrent validity was examined using the Bergen Social Media Addiction Scale (BSMAS), the Patient Health Questionnaire-4 (PHQ-4), and the Big Five Inventory-10 (BFI-10). Reliability was evaluated through multiple indices, including Cronbach’s alpha, McDonald’s omega, Cohen’s kappa, and the intraclass correlation coefficient.
RESULTS
Corrected item–total correlations and confirmatory factor analysis confirmed that the final version of the TTAS-SF includes six items in one factor. Concurrent validity of the TTAS-SF was excellent since we found statistically significant correlations between the TTAS-SF and the BSMAS, the PHQ-4, and the BFI□10. Cronbach’s alpha and McDonald’s Omega for the TTAS-SF was 0.805 and 0.817, respectively. Cohen’s kappa for the six items ranged from 0.789 to 0.905 (p < 0.001 in all cases). Additionally, intraclass correlation coefficient was 0.993 (p < 0.001). Thus, the reliability of the TTAS-SF was excellent. The best cut-off point for the TTAS-SF was 13, indicating that TikTok users with TTAS-SF score ≥13 were considered as users with a problematic TikTok use and high probability of addiction issues, and those with TTAS-SF score <13 as healthy users.
CONCLUSIONS
The TTAS-SF is a one-factor 6-item scale with great reliability and validity. The TTAS-SF is a short and easy-to-use tool that measures levels of TikTok addiction in a couple of minutes. Valid measurement of TikTok addiction with brief and valid tools is essential to further understand predictors and consequences of this phenomenon.
