Supplementary file 1_Platform-based academic interaction and self-regulated learning in a WeChat-centered social media environment: information overload, perceived control, and information anxiety.docx

In China, these activities are frequently embedded in WeChat-centered communication streams characterized by persistent connectivity, fragmented information sharing, and overlap between academic and personal communication. Drawing on cognitive load theory, control-value theory, and social cognitive theory, this study examined how platform-based academic interaction was associated with self-regulated learning through information overload, perceived control, and information anxiety.

Survey data were collected from 846 Chinese university students, of whom 98.5% reported using WeChat for academic purposes and 91.7% identified WeChat as their primary academic communication platform. Structural equation modeling indicated a positive direct association between platform-based academic interaction and self-regulated learning, while the estimated indirect associations involving information overload, perceived control, and information anxiety were negative and larger in absolute magnitude, yielding a negative estimated total association.