Full Length ArticleThe Big Five personality traits, Big Two metatraits and social media: A meta-analysis

•Plasticity positively predicted all SNS activities.•Stability negatively predicted all SNS activities except for SNS interaction.•Only extraversion and neuroticism were significantly associated with global SNS use.•Openness was positively linked to most SNS activities.•Conscientiousness was negatively related to SNS gaming and information seeking.

This article reported a meta-analysis of the relationships between social network site use and the Big Five (neuroticism, extraversion, openness, agreeableness, and conscientiousness) as well as the Big Two (plasticity and stability) personality meta-traits. A random effect meta-analysis model was used to calculate the meta-results of Big Five. Extraversion and openness were the strongest predictor of SNS activities (e.g. gaming, SNS interaction, etc.), while conscientiousness, neuroticism, and agreeableness only correlated with a few of the SNS activities. A meta-analytical structural equation model further demonstrated that plasticity was positively correlated with SNS activities, whereas stability was a negative predictor. Practical implications for social media industry and users were discussed.