Julie Aitken Schermer

TL;DR: This study presents the first behavioral genetic investigation of the relationships between trait emotional intelligence (trait EI or trait emotional self-efficacy) and the Dark Triad traits of narcissism, Machiavellianism, and psychopathy.

TL;DR: The authors investigated the relationship between trait emotional intelligence (trait EI; TEIQue-SF) and the Big Five personality dimensions (NEO-FFI) in two Dutch samples and found that the overlap between trait EI and the higher-order personality dimensions exceeds 50%, even when the constructs are operationalized via shortened assessments.

TL;DR: Findings show that high-GFP individuals score higher on trait and ability EI, supporting the notion that the GFP is a social effectiveness factor and suggesting that theGFP is very similar, perhaps even synonymous, to trait EI.

TL;DR: The first behavioural genetic investigation of mental toughness, as measured by the 48-item mental toughness (MT48) questionnaire, and the first BG investigation of relationships between mental toughness and the Big-5 factors of personality was conducted by.

TL;DR: For instance, this paper found that individual differences in the two positive humor styles (affiliative and self-enhancing) and all five of the Big-5 personality traits were largely attributable to genetic and nonshared environmental factors.