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. 2021 Aug 11;16(8):e0255382. doi: 10.1371/journal.pone.0255382

Table 7. Mediation analyses with Collective Responsibility as the mediator and vaccination intention as the dependent variable (n = 1127).

Model 1 Model 2 Model 3 Indirect effect
Dependent variable Vaccination Intention Collective Responsibility Vaccination Intention
Paths c (total effect) a b and c’ (direct effect) a*b
Coefficient β p β p β p Indirect effect [95% BC-CI]
Predictors
Perceived risk of C-19: others 0.03 .27 0.13 < .001 -0.05 .04 0.08 [0.04, 0.13]
Benefits vaccine: self vs others -0.04 .13 0.05 .09 -0.08 < .001 0.03 [-0.01, 0.07]
Pyschopathy -0.10 < .001 -0.13 < .001 -0.02 .35 -0.08 [-0.13, -0.04]
Altruism 0.01 .66 0.09 .01 -0.04 .09 0.06 [0.01, 0.10]
Need to Belong 0.14 < .001 0.11 < .001 0.06 .01 0.07 [0.03, 0.11]
Control variables
Female (= 1) -0.14 < .001 -0.08 .01 -0.08 < .001
Belgium dummy (= 1) -0.14 < .001 -0.09 .04 -0.09 .01
Portugal dummy (= 1) 0.03 .41 0.06 .12 -0.01 .82
Mediator
Collective Responsibility 0.65 < .001
R2 0.07 0.08 0.45

Note: The indirect effects that are bold printed do not contain zero in their 95% bias-corrected confidence intervals (95% BC-CI) and are interpreted as being statistically significant. β is a standardized coefficient. The indirect effect is completely standardized for continuous variables and partially standardized for binary variables.