Maher Institute Inc Iranian Journal of Neurodevelopmental Disorders 3115-848X 3 2025 03 29 The Relationship Between Marital Fatigue and Attitudes Toward Infidelity: The Mediating Role of Spiritual Intelligence The Relationship Between Marital Fatigue and Attitudes Toward Infidelity: The Mediating Role of Spiritual Intelligence 174 181 10.61838/kman.jndd.3.1.19 EN Journal Article 2024 11 20 <p><strong>Purpose: </strong>The aim of this study was to investigate the relationship between marital fatigue and attitudes toward infidelity, with a specific focus on the mediating role of spiritual intelligence among married university students.</p> <p><strong>Methods and Materials: </strong>This descriptive-correlational study was conducted on a sample of 322 married students from Islamic Azad University, South Tehran Branch, selected using convenience sampling. Data were collected through standardized questionnaires: the 20-item Marital Fatigue Scale (Pines, 2002), the 12-item Attitudes Toward Infidelity Scale (Whatley, 2006), and the 97-item Spiritual Intelligence Scale (Motahhari, 2009). Data analysis was performed using SPSS-23 for descriptive statistics and Pearson correlation, and AMOS-21 was used for structural equation modeling (SEM) to test the mediating model.</p> <p><strong>Findings: </strong>The results showed that marital fatigue was positively correlated with attitudes toward infidelity (r = .56, p &lt; .01) and negatively correlated with spiritual intelligence (r = −.49, p &lt; .01). Spiritual intelligence also showed a negative correlation with attitudes toward infidelity (r = −.44, p &lt; .01). Structural model fit indices indicated a good model fit (χ²/df = 1.99, RMSEA = 0.055, CFI = 0.96, GFI = 0.94). SEM results confirmed that spiritual intelligence partially mediated the relationship between marital fatigue and attitudes toward infidelity. The direct effect of marital fatigue on attitudes toward infidelity was significant (β = 0.38, p &lt; .001), as was the indirect effect via spiritual intelligence (β = 0.16, p &lt; .001).</p> <p><strong>Conclusion: </strong>These findings suggest that spiritual intelligence serves as a protective factor, mitigating the negative impact of marital fatigue on permissive attitudes toward infidelity. Enhancing spiritual intelligence may be an effective strategy in marital counseling and prevention of relational betrayal.</p> https://www.maherpub.com/index.php/jndd/article/download/480/355