“…Furthermore, they are independent from general personality factors (i.e., the big five factors) and also from more specific factors such as proactive personality, personal initiative, and achievement motivation (see Kuhl & Beckman, 1994, Heckhausen & Strang, 1988Jostman & Koole, 2010, for overviews of validation research; see Diefendorff et al, 2000Diefendorff et al, , 2006, for validity evidence in organizational contexts).…”