“…PTSD may be chronic in youth, potentially lasting years (Morgan, Scourfield, Williams, Jasper, & Lewis, 2003; Yule et al., 2000). Given this potential for profound disruption of a young person's development, researchers have attempted to understand the etiology and evolution of chronic PTSD (Winston, Kassam‐Adams, & Garcia‐Espana, 2003), with a view to early intervention (Marsac, Donlon, & Berkowitz, 2014). …”