SE = standard error; OR = odds ratio; CI = odds ratio confidence interval. All personality variables were standarized. Age, measured in years. Men: dummy variable where women = 0 and men = 1. Sexual minority: dummy variable where heterosexual = 0 and sexual minority = 1. Bold values correspond to statistically significant coefficients (p < 0.05). Nonusers was the reference group.
Given the relevant correlation between Agreeableness and Dark Core, which could lead to some problems of multicollinearity, we tested a model without dark personality scores. If multicollinearity was a concern, the pattern of results would be changed for this reduced model, but that was not the case. For the full model, the results for Agreeableness were as follows: ORearly in the day = 0.95, p = 0.555; ORnewest = 1.00, p = 0.989; and for the reduced model: ORprevious = 0.96, p = 0.589; ORcurrent = 0.90, p = 0.215. We did not test a model without Agreeableness as we considered that, theoretically, it made no sense to exclude one of the dimensions of the Big Five.Continue reading