“…Numerous studies have examined age-related differences on symptoms of depression, and posttraumatic stress disorder (PTSD), and on levels of life satisfaction across the lifespan within specific societies (e.g., Fung et al, 2008;Goldbeck, Schmitz, Besier, Herschbach, & Henrich, 2007;Stordal et al, 2001). These studies concluded that, on average, younger adults report higher symptomatology for depression (Armstrong, Wuthrich, Knight, & Joiner, 2014;Fung et al, 2008;Stordal et al, 2001), PTSD (Borges, Benjet, Petukhova, & Medina-Mora, 2014) and lower scores of life satisfaction (Daig, Herschbach, Lehmann, Knoll, & Decker, 2009;Nordea-Fonden & Institut for Lykkeforskning, 2015). However, these studies have been conducted predominantly in Western societies.…”