Abstract
Much of the existing literature on the influence of social media use on well-being has focused on Facebook. Additionally, there exist inconsistencies in how different aspects of social media use (i.e., duration, problematic use, and emotional investment) impact well-being. Thus, the present study aimed to investigate how engagement with social media (Instagram and TikTok) was related to problematic social media use and mental well-being. Additionally, this study examined individuals’ emotional investment (value attributed to “likes” and social media followers) on each platform and how this related to problematic social media use and well-being. In this correlational study, 252 participants completed an online questionnaire including validated scales (e.g., the Rosenberg self-esteem scale) and items measuring the time spent on each platform (minutes per day) and the importance of likes, and followers. Time spent on TikTok was a significant positive predictor of problematic social media use, depression, and self-esteem, however, did not predict loneliness. Time spent on Instagram was a significant positive predictor of problematic social media use, but not any other well-being factors. These latter findings highlight the need to investigate additional factors related to how individuals are using social media, as duration is not a sufficient predictor of well-being. Problematic social media use was a significant positive predictor of depression and self-esteem, but not loneliness. Emotional investment varied in predicting problematic social media use and well-being across the two social media platforms. Present findings may alert clinical psychologists to the importance of monitoring social media use in clinical populations.