“…Researchers have explored how factors of posttraumatic symptoms may influence each other longitudinally (Marshall, Schell, Glynn, & Shetty, 2006; Pietrzak et al, 2014; Schell, Marshall, & Jaycox, 2004; Solberg, Birkeland, Blix, Hansen, & Heir, 2016; Solomon, Horesh, & Ein-Dor, 2009). Common findings among these studies are that intrusive and hyperarousal symptoms predict further symptom development.…”