“…Veterans, particularly those veterans who lived through the "Vietnam experience" (Boyle, Decouflé, & O'Brien, 1989), may differ from nonveterans in their approach to surveys. This is due to many factors: their stigmatization derived from involvement in a very unpopular war, the lack of community support after returning from the war theater (Boscarino et al, 2018) and poor reintegration into civilian life, and their various deployment-related exposures that have created prolonged effects on their physical and mental health status (Boyle et al, 1989;Kulka et al, 1988;Magruder et al, 2015;National Academies of Sciences, Engineering, and Medicine, 2016;Pease, Billera, & Gerard, 2016;Schlenger et al, 2015;Spiro, Settersten, & Aldwin, 2016). Thus, qualitative methods are useful in assessing veterans' perceptions and interpretation of questionnaire items, and their receptivity to surveys prior to main questionnaire administration.…”