“…The psychometric structure of dispositional negativity is relatively invariant across cultures, languages, and ages, at least from elementary school onward (De Pauw, 2017; Kajonius & Giolla, 2017; McCrae, Terracciano, & Personality Profiles of Cultures, 2005; Schmitt, Allik, McCrae, & Benet-Martinez, 2007; Shiner, 2018; Soto & John, 2014; van Hemert, van de Vijver, Poortinga, & Georgas, 2002). Individual differences in dispositional negativity are highly reliable, show substantial agreement across instruments and informants, and predict objective behavioral and psychophysiological indices of anxiety in the laboratory, indicating that dispositional negativity is more than just a negative response bias (Back, Schmukle, & Egloff, 2009; Borkenau, Riemann, Angleitner, & Spinath, 2001; Brunson, Øverup, & Mehta, 2016; Buss, 1991; Connelly & Ones, 2010; Connolly, Kavanagh, & Viswesvaran, 2007; Costa & McCrae, 1988; Fetvadjiev, Meiring, van de Vijver, Nel, & De Kock, in press; Holland & Roisman, 2008; Kurtz, Puher, & Cross, 2012; McCrae & Costa, 1987; Mõttus, McCrae, Allik, & Realo, 2014; Pace & Brannick, 2010; Shackman et al, 2016c; Smith et al, 2016; Soto, John, Gosling, & Potter, 2011; Thielmann & Hilbig, in press; Vazire, 2010; Vazire & Carlson, 2010; Watson, Nus, & Wu, in press ). Indeed, core features of this phenotypic family—including increased behavioral inhibition, heightened vigilance, and other signs of fear and anxiety—are expressed similarly across mammalian species, enabling ‘mechanistic’ (i.e., focal perturbation) studies to be performed in rodents and monkeys (Boissy, 1995; Capitanio, 2018; Fox & Kalin, 2014a; Mobbs & Kim, 2015; Oler, Fox, Shackman, & Kalin, 2016; Qi et al, 2010).…”