The role of rumination and metamemory beliefs in posttraumatic growth and posttraumatic stress

The risk of developing posttraumatic stress symptoms following exposure to traumatic events is well documented, however, emerging research also lends support to the potential development of growth in some people. Rumination and memory have been identified as important factors in post-trauma outcomes, yet, current research in this area is limited, particularly in the context of a multidimensional view of rumination (i.e., intrusive and deliberate rumination) and metamemory beliefs. This study explored the association between rumination styles, beliefs about memory, and posttraumatic stress symptoms and posttraumatic growth. Participants (N = 151) who experienced a traumatic event completed relevant measures online. Path analysis showed that intrusive rumination was significantly related to higher levels of posttraumatic stress symptoms (β = 0.19, p < 0.01), while deliberate rumination was related to higher levels of both posttraumatic growth (β = .52, p < 0.001) and posttraumatic stress symptoms (β = 0.15, p < 0.05). Additionally, negative beliefs about memory were significantly related to higher posttraumatic stress symptoms (β = 0.48, p < 0.001). No significant associations were found for positive beliefs about memory. The findings suggest that rumination may be understood as multidimensional, incorporating both adaptive and maladaptive processes. Further, the present study contributes to the limited literature concerning metamemory beliefs and may provide an increased understanding of factors contributing to stress or growth.