Be Careful What You Write Online: ‘Dark Triad’ Traits Are Detectable, Facebook Study ShowsIn a Nutshell *A new study found machine learning can estimate where people fall on the Dark Triad traits (narcissism, *Machiavellianism, and psychopathy) from Facebook posts. *No single model proved reliably better or worse than the others on systematic prediction errors (bias); the gaps between models on that measure were small and statistically negligible. *Words people use in social media posts, especially language tied to perception, action, and emotional tone, were consistently among the strongest signals linking text to Dark Triad traits. Every time someone fires off...