Abstract

In implicit theory, a fixed mindset is a belief that an individual’s characteristics are immutable, and a growth mindset is a be- lief that one’s characteristics are changeable through effort. This study aimed to analyze the moderating effect of mindset on the relationship between depression and mental well-being. To this end, the self-report questionnaire responses of 1,107 psy- chiatric patients were used. Their depression, mental well-being, and mindset for anxiety, intelligence, emotion regulation, and personality were measured. Correlation analysis was performed on the subtypes of mindset, depression, and mental well- being. In addition, we verified whether each mindset subtype moderated the relationship between depression and mental well-being. The results showed that all subtypes of mindset had a significant moderating effect on depression and mental well-being. The importance of therapeutic interventions, such as maintaining a stable level of mental health using various in- terventions for growth and fixed mindsets according to the depression level of psychiatric patients, was discussed.