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Longitudinal Association Between Event-Related Rumination and Posttraumatic Growth: Latent Growth Curve Mediation
Yuki Shigemoto1, Muna Bhattarai2
1Department of Psychology, University of Florida, Gainesville, Florida, USA.
Summary
Deliberate rumination (DR) mediates the relationship between intrusive rumination (IR) and posttraumatic growth (PTG). Focusing on changes in rumination over time is key to predicting changes in PTG.
Area of Science:
- Psychology
- Trauma Studies
- Mental Health
Background:
- Existing literature supports deliberate rumination (DR) mediating between intrusive rumination (IR) and posttraumatic growth (PTG).
- Limited research has explored the dynamic interplay between changes in rumination and PTG over time.
Purpose of the Study:
- To differentiate rumination and PTG variables into intercept and slope factors.
- To examine the mediation effect of DR on IR and PTG, considering change components.
Main Methods:
- Longitudinal study with 552 adult participants recruited via Amazon's Mechanical Turk.
- Data collected at nine timepoints from April 2020 to April 2023.
- Analysis distinguished intercept and slope factors for rumination and PTG variables.
Main Results:
- Cross-sectional analysis at Time 1 confirmed DR's mediation between IR and PTG.
- Time 1 scores did not predict changes in rumination or PTG.
- Longitudinal analysis revealed DR fully mediated changes in PTG from changes in IR.
Conclusions:
- Changes in rumination significantly predict changes in posttraumatic growth.
- Continuous engagement in deliberate rumination is crucial for fostering future posttraumatic growth.
- Longitudinal analysis provides a more nuanced understanding of the rumination-PTG relationship.
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