The impact of place and legacy framing on climate action: A lifespan approach

legacy motives were revealed to have a significant effect on behavioral intentions when con- trolling for exposure to the Legacy induction, b = .355, t(665) = 9.67, p < .001. Step 4 revealed that the effect of the Legacy induction on individuals’ behavioral intentions was partially medi- ated by increases in legacy motives: b = .118, t(665) = 3.22, p = .001. Mediation was also con- firmed by a bias-corrected bootstrapping procedure using 10,000 samples [38] (Hayes, 2013). This analysis showed that the indirect effect of the Legacy induction on behavioral intentions through legacy motivation was significant, with a 95% confidence interval (CI) that excluded zero (β = 0.180, 95% CI = [0.120, 0.245]). In step 1 of the second analysis, we revealed that exposure to the Legacy induction had a sig- nificant effect on donations, b = .083, t(685) = 2.19, p = .029. Step 2 confirmed that the Legacy induction had a significant effect on legacy motives, b = .248, t(675) = 6.64, p < .001. In step 3, legacy motives were revealed to have a significant effect on donations when controlling for exposure to the legacy induction, b = .139, t(674) = 3.53, p < .001. The final step revealed that the effect of the Legacy induction on donations was fully mediated by increases in legacy motives: b = .054, t(674) = 1.37, p = .171. Mediation was confirmed by a bias-corrected boot- strapping procedure using 10,000 samples (Hayes, 2013). This analysis showed that the indi- rect effect of the Legacy induction on donations through legacy motivation was significant,

with a 95% confidence interval (CI) that excluded zero (β = 0.069, 95% CI = [0.028, 0.118]). We conducted two additional mediation analyses to assess whether biophilia mediated the Place induction’s effect on donations (Fig 5), and whether biophilia mediated the Place induc- tion’s effect on behavioral intentions (Fig 6). Dummy coding was used on predictor variables to allow for comparisons between the control and Place induction conditions. In step 1 of the first analysis, we confirmed that exposure to the Place induction had a significant effect on donations, b = .101, t(690) = 2.68, p = .008. Step 2 revealed that the Place induction was found to have a significant effect on biophilia attitudes, b = .111, t(690) = 2.93, p = .004. In step 3, Fig 3. Mediation of legacy induction and behavioral intentions by legacy motives. ���p < .001. ��p < .01. �p < .05. https://doi.org/10.1371/journal.pone.0228963.g003 Impact of framing on climate action PLOS ONE | https://doi.org/10.1371/journal.pone.0228963 February 25, 2020 9 / 17