Posttraumatic Growth and Centrality of Event: A Longitudinal Study in the Aftermath of the 2011 Oslo Bombing

Blix, I., Birkeland, M. S., Hansen, M., & Heir, T. (2015). Posttraumatic Growth and Centrality of Event: A Longitudinal Study in the Aftermath of the 2011 Oslo Bombing. Psychological Trauma, 7(1), 18-23. doi:10.1037/tra0000006

By applying a cross-lagged autoregressive model, the present study investigates both stability across time, possible time-lagged effects, and the relationship between centrality of event and PTG at 1 and 2 years after the bombing.

The results showed that levels of centrality of event and PTG were stable across time. There was a significant association between centrality of event and PTG both 1 and 2 years after the bombing; however, this relationship attenuated over time.

No time-lagged effects in either direction were found. The present findings are in line with previous findings indicating that centrality of a traumatic event is related to PTG.

However, the present longitudinal data do not support a hypothesis about a long-term causal effect of event centrality on PTG. Rather, the relationship between centrality of event and PTG are concurrent, and attenuates with time.

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