This study aimed to investigate the mediational role of smartphone addiction in the relationship between
emotion regulation and subjective happiness. Participants were 320 university student volunteers (167 women
and 153 men) from two state universities in Turkey. They completed a self-report questionnaire about emotion regulation, smartphone addiction, and subjective happiness. Structural equation modeling (SEM) and
bootstrapping were applied to test the mediational role of smartphone addiction in the relationship between
emotion regulation and subjective happiness. The results indicated that reappraisal predicted lower smartphone addiction scores and higher subjective happiness scores. On the contrary, suppression predicted higher
smartphone addiction scores and lower subjective happiness scores. In addition, smartphone addiction proved
to be a partial mediator between emotion regulation strategies and subjective happiness. Therefore, the results
of this study support the evidence for the impact of emotion regulation on subjective happiness through smartphone addiction.