Abstract

This study aimed to define digital convergence in addiction problems—where various addictive behaviors and substances intersect and merge within digital environments—and to create a scale for measuring this concept. To achieve this, a two-stage study was conducted. In Study 1, we derived an operational definition and indicators by integrating a narrative review with a text network analysis based on X (Twitter). We selected items through expert content validity evaluation and a pilot survey (n=100). In Study 2, we examined the scale's factor structure, internal consistency, test-retest reliability, and both convergent and criterion-related validity using a main survey (n=250). The results indicated that digital convergence in addiction problems refers to how the integration of digital technologies and platforms enhances the acceptability, availability, and accessibility of addictive targets, strengthens connections between behavioral and substance addictions, and contributes to complex addiction issues. Ultimately, we selected thirteen items for the scale, which demonstrated acceptable internal consistency and a unidimensional structure. The test-retest reliability was found to be .725 (Spearman's rho, p<.001). Furthermore, the scale showed significant positive correlations with internet gaming disorder, gambling issues, sexual addiction, and alcohol use problems, while the association with substance use disorder was not significant. These findings suggest that the developed scale could act as an environmental risk indicator, capturing the connectivity and diffusion potential of addiction problems within digital contexts.