Past literature has shown that extraversion is related to the use of positive emotion and social process words. However, the strength of the relationships varies substantially across studies. In this research, we conducted a meta-analysis (k = 37, N = 82,132) to estimate the overall effect size of the two linguistic correlates of extraversion. In addition, we tested potential moderators including demographic variables (e.g., age and gender) and communication contexts (e.g., synchronous vs. asynchronous, public vs. private). Our random effects models revealed a small correlation between extraversion and positive emotion words (r = 0.069, 95% CI = [0.041, 0.096]), and a small correlation between extraversion and social process words (r = 0.077, 95% CI = [0.044, 0.109]). In addition, the strength of the relationship between extraversion and positive emotion words varies across communication contexts, while the relationship between extraversion and social process words remains consistent across contexts. Our results suggest that positive emotion words and social process words are linguistic correlates of extraversion, but they are small in magnitude.

过去的文献表明，外向性与积极情绪和社交过程词的使用有关。但是，各研究之间的关系强度差异很大。在这项研究中，我们进行了荟萃分析（k  = 37，N  = 82,132）来估计两个语言外向相关因素的整体效果大小。此外，我们测试了潜在的主持人，包括人口统计学变量（例如年龄和性别）和沟通环境（例如同步与异步，公共与私人）。我们的随机效应模型显示，外向性与积极情绪词之间的相关性较小（r  = 0.069，95 ％CI  = [0.041，0.096]），外向性与社交过程词之间的相关性较小（r  = 0.077，95 ％CI  = [0.044，0.109]）。此外，外向性与积极情绪词之间的关系强度在交流环境中会有所不同，而外向性与社交过程词之间的关系在环境中会保持一致。我们的研究结果表明，积极情绪词和社会过程词是外向性的语言关联，但幅度较小。