“…Instead, most studies of soldiers’ combat stressors gather retrospective measures after soldiers return home (e.g., Currie et al, 2011; Mitchell et al, 2011) or opt for a pre- and post-deployment strategy (e.g., Contractor et al, 2017; Franz et al, 2013). A few studies, however, obtained data at one time during deployment (e.g., Dyches et al, 2017; Schaubroeck et al, 2011; Taylor et al, 2014), sometimes including a follow-up after they returned home (Vinokur et al, 2011). Each study tended to have one or more serious problems, however, including the effects of recall bias (e.g., memory loss/reconstruction due to over-reliance on long-term memory after deployment is over), the uncontrolled possibility of reverse-causation, and the loose definition of combat situations (e.g., being deployed to a wide combat region but being a member of an air force ground crew that never saw actual combat).…”