Post-traumatic growth in people experiencing high post-traumatic stress during the COVID-19 pandemic: The protective role of psychological flexibility.

The COVID-19 pandemic evokes high levels of post-traumatic stress (PTS) in some people as well as positive personal changes, a phenomenon known as post-traumatic growth (PTG). Experiencing an adverse event as traumatic is crucial for triggering PTG, therefore higher PTS is often associated with higher PTG. This longitudinal study examined the protective role of psychological flexibility in fostering PTG in a group of people reporting high PTS related to COVID-19 as compared to those with low PTS. We hypothesized that higher psychological flexibility will be associated with higher PTG in those with high PTS and that psychological flexibility would be unrelated to PTG in those with low PTS. Secondary data analysis was conducted on data from a larger project investigating the psychological impacts of COVID-19. Adult Italians (N = 382) completed online surveys at Time 1 (three months after the first national lockdown, July 2020) and Time 2 (three months later when the number of COVID-19 cases increased, October 2020). Based on the Impact of Event Scale-Revised cut-off score, two PTS groups were identified at Time 2: low PTS (below cut-off) and high PTS (above cut-off). As predicted, moderation analyses showed that after controlling for Time 1 PTS and PTG and confounding variables, Time 1 psychological flexibility was associated with higher Time 2 PTG in the high PTS group, whereas psychological flexibility was unrelated to PTG in the low PTS group. Four psychological flexibility sub-processes (present moment awareness, defusion, values, committed action) at Time 1 were related to higher Time 2 PTG in only the high PTS group. Findings advance understanding of the role of psychological flexibility in trauma reactions and pandemic mental health adjustment. Evidence-based approaches that target psychological flexibility, like Acceptance and Commitment Therapy, are likely to foster PTG and ultimately adjustment in people with high PTS during and after the pandemic.