“…Using the type of social norm as the independent variable (working-together norms = 1, no working-together normative-information social norms = 0), perceived behavioral control and intentions towards pro-environmental donations as mediating variables, proenvironmental donations as the dependent variable, and gender and age as covariates, 5000 samples were extracted using the bootstrapping method to for 95% confidence interval (95% CI) estimations. To reduce multicollinearity [47], in reference to previous studies [48,49], all data have been mean-centralized, and the following results are presented as standardized coefficients. The predictive effect of the type of social norms on perceived behavioral control was significant, β = 0.20, SE = 0.09, p = 0.022, 95% CI = [0.03, 0.38].…”