Perceived social support, emotional self-disclosure, and posttraumatic growth in children following a typhoon: a three-wave cross-lagged study

<b>Objective:</b> We aimed to elucidate the temporal relationship between perceived social support, emotional self-disclosure and posttraumatic growth (PTG) in children.<b>Method:</b> The super typhoon Lekima occurred on August 10, 2019, in China. Three waves of self-report questionnaires were administered to children at 3 months (T1, <i>N </i>= 1596), 15 months (T2, <i>N</i> = 1072), and 27 months (T3, <i>N </i>= 483) following the typhoon. The main analysis was based on data from 351 children who completed all three waves of assessment. We constructed cross-lagged panel models to examine temporal associations between perceived social support, emotional self-disclosure, and posttraumatic growth.<b>Results:</b> Controlling for trauma exposure, age, gender, monthly income of family and parental marital status, results revealed that perceived social support at T1 and T2 was longitudinally related to emotional self-disclosure and PTG at T2 and T3. Emotional self-disclosure at T1 and T2 positively connected with perceived social support and PTG at T2 and T3. However, PTG did not relate to subsequent perceived social support. Mediation analyses revealed that perceived social support at T1 was positively connected with PTG at T3 through emotional self-disclosure at T2, and that emotional self-disclosure at T1 was positively connected with PTG at T3 through perceived social support at T2.<b>Conclusions:</b> These results demonstrated that perceived social support and emotional self-disclosure were mutually reinforcing, and both could facilitate PTG among children. Post-disaster psychological interventions could work to enrich social support resources and encourage children's emotional self-disclosure.