
Harmonious passion appeared to significantly mediate the positive effect of trait self-control on wellbeing however, the size of the mediating effect indicated that (almost) no mediation would take place (i.e., VAF = 11.144%). Mediation analyses revealed that trait self-control significantly mediated the relationship between harmonious passion and wellbeing (i.e., partial mediation, VAF = 33.136%). Correlational analyses revealed positive relationships between harmonious passion, trait self-control, and wellbeing, and no relationships of obsessive passion with trait self-control and wellbeing. Preliminary analyses revealed that both models were significant ( model 1: absolute GoF = 0.366, relative GoF = 0.971, outer model GoF = 0.997, inner model GoF = 0.973, R 2 = 18.300%, p < 0.001 model 2: absolute GoF = 0.298 relative GoF = 0.980 outer model GoF = 0.997 inner model GoF = 0.982 R 2 = 12.111%, p < 0.001). Five hundred nine volunteers from the United States (326 females and 183 males M age = 31.74, SD age = 11.05, from 18 to 70 years old), who reported being passionate about a specific activity (e.g., fishing, swimming, blogging M passion = 5.94, SD passion = 0.89), answered questionnaires assessing harmonious and obsessive passion, trait self-control, and wellbeing (measured through hedonic and eudaimonic wellbeing scales).

Using different frameworks, such as the dualistic model of passion and the neo-socioanalytic theory, the present study proposed two mediation models, considering either trait self-control (model 1) or passion (model 2) as the mediating variable. Yet, no study to date has attempted to investigate the mediating influences of trait self-control and passion for accounting for the relationships between passion, trait self-control, and wellbeing (dependent variable).

Research has found that passion and trait self-control represented key determinants of wellbeing.
