What is the relationship between short video applications and adolescents' critical thinking disposition? The mediating role of media dependency

Short video applications (SVA) have become increasingly prevalent among adolescents, raising growing concerns about their potential associations with cognitive development. Although research has examined social media, screen time, and addiction, limited empirical attention has been given to how SVA usage behaviour and dependency relate to adolescents’ critical thinking. This study assessed the relationship between SVA and adolescents' critical thinking disposition using a cross-sectional survey design. Data were collected from 442 adolescents aged 15–18 at one high school in Anhui Province, China, and analysed using structural equation modelling to assess the mediation pathways. Findings showed that SVA usage behaviour was positively associated with critical openness through dependency, attitude, and perceived behavioural control. In contrast, opposing direct and indirect pathways on reflective scepticism resulted in a non-significant overall relationship. These findings suggest that greater attention may be given to adolescents’ goal-oriented SVA use rather than simply reducing screen time.