Tendency to use substances based on negative affectivity and sensation seeking with the mediating role of self-efficacy: Structural equation modeling

Introduction: The study aimed to investigate the mediating role of self-efficacy in the relationship between sensation seeking and negative affectivity in students’ tendencies towards addiction. Materials and Methods: The statistical population consisted of the students of Lorestan University, Iran, in the 2022-2023 academic year. We selected 384 individuals, and they fulfilled the General Self-Efficacy Scale, The Positive and Negative Affect Schedule (PANAS), Zuckerman’s Sensation Seeking Scale, and the Iranian Addiction Preparedness Scale. Descriptive analysis was conducted using SPSS software, while analytical data was examined through the structural equation modeling approach with AMOS software. Results: The positive relationship between sensation seeking and negative affectivity with the tendency to use substances, as well as the indirect relationship between sensation seeking and negative affectivity through self-efficacy and the tendency to use substances, was confirmed (P= 0.001). Conclusion: Sensation-seeking and negative affectivity increase substance use, while self-efficacy reduces it. Experts should conduct training to discourage sensation-seeking and enhance self-efficacy among university students.