The popularity of social networking sites (SNSs) has drawn researchers' attention in recent years, and a large amount of efforts have been made to explore the association between SNS use and loneliness, however, they provided mixed results. This meta-analysis was conducted to confirm the relationship, based on 82 articles consisting of 90 independent samples with a total of 48,383 participants. A random-effects model was used to analyze main effects and revealed that SNS use and loneliness were weakly, yet significantly positively correlated (r...