Table 2

Results of the simple mediation analyses

HypothesisPredictorMediatorOutcomeIndirect Effect (B, 95% CI)Direct Effect (B, 95% CI)Total Effect (B, 95% CI)% Mediated
H5Individual Biospheric ValuesSelf-efficacyIn-role PEB0.104*** [0.053, 0.163]0.107 [−0.002, 0.216]0.211*** [0.089, 0.328]49.4
H6Organisational Biospheric ValuesSelf-efficacyIn-role PEB0.118*** [0.066, 0.178]0.139* [0.033, 0.252]0.257*** [0.151, 0.375]45.8
H7Organisational Biospheric ValuesCollective Outcome EfficacyIn-role PEB0.069*** [0.034, 0.112]0.188*** [0.079, 0.295]0.257*** [0.151, 0.364]26.8
H8Organisational Biospheric ValuesCollective Outcome EfficacyEnvironmental Advocacy0.067*** [0.035, 0.105]0.162** [0.067, 0.259]0.229*** [0.130, 0.327]29.3
Explorative Analysis
Not hypothesisedIndividual Biospheric ValuesSelf-efficacyEnvironmental Advocacy0.098*** [0.049, 0.155]0.170*** [0.079, 0.264]0.268*** [0.165, 0.371]36.6
Not hypothesisedOrganisational Biospheric ValuesSelf-efficacyEnvironmental Advocacy0.118*** [0.070, 0.174]0.111* [0.018, 0.205]0.229*** [0.130, 0.330]51.4
Not hypothesisedIndividual Biospheric ValuesCollective Outcome EfficacyIn-role PEB0.089*** [0.047, 0.141]0.122* [0.009, 0.234]0.211*** [0.094, 0.331]42.3
Not hypothesisedIndividual Biospheric ValuesCollective Outcome EfficacyEnvironmental Advocacy0.080*** [0.038, 0.121]0.189*** [0.092, 0.285]0.268*** [0.170, 0.366]29.7

Note(s): Indirect effects reflect the estimated effect of the predictor on the outcome through the mediator. Direct effects reflect the effect of the predictor on the outcome while accounting for the mediator. The total effect refers to the combined direct and indirect effects. The percentage mediated indicates the proportion of the total effect that operates through the mediator. *p < 0.05, **p < 0.01, ***p < 0.001

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