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    How do parents’ sustainability concerns affect childhood obesity? the mediating role of sustainable food consumption and healthy eating habits.
    (Karabük Üniversitesi, Lisansüstü Eğitim Enstitüsü, 2024) Pouyan, Arezoo; Cengiz, Hakan
    The growing issue of global unsustainability and childhood obesity has gradually increased due to modern consumption habits. These challenging issues of contemporary society are alarms for global public health. Therefore, policymakers are working to address the challenges of unsustainability and childhood obesity by developing plans and programs to mitigate their global impact. This study aims to explore the relationship between these two critical concerns. This thesis explores the relationship between parents' sustainability concerns and childhood obesity through an explanatory sequential mixed methods approach. The study involved 205 participants in the quantitative phase and 10 participants in the qualitative phase. The quantitative data was analyzed using structural equation modeling with SmartPLS. The results indicate that parents' sustainability concerns do not directly influence children's body mass index. However, this relationship is fully mediated through two serial mediating variables: sustainable food consumption and healthy eating habits, emphasizing their significance in addressing childhood obesity. To explain, complete, and extend the quantitative results, qualitative data was collected through in-depth interviews and analyzed using thematic analysis. The qualitative results further elucidate the complexities of the relationship, providing deeper insights into how parents' sustainability concerns translate into practices that indirectly affect their children's body mass index. These findings underscore the significance of promoting sustainable food consumption and healthy eating habits as key strategies in addressing childhood obesity. Overall, the study contributes to the understanding of the indirect pathways through which sustainability concerns impact childhood obesity, offering valuable implications for both policy and practice.
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    Linking gamers’ competitive spirit and in-game impulse purchase: The need for popularity as a mediator and social competence as a moderator
    (Elsevier BV, 2025-02) Cengiz, Hakan; Pouyan, Arezoo; Azdemir, Hasan
    This study investigated the effects of competitive attitudes on in-game impulse purchase behaviors, focusing on the mediating role of the need for popularity and the moderating effect of social competence. Data collected from 234 participants via broadcasters on Discord and Twitch platforms was analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM). The findings confirm that the need for popularity fully mediates the relationship between competitive attitudes and in-game impulse purchases. Moreover, social competence was found to moderate this relationship negatively, indicating that individuals with lower social competence are more influenced by their need for popularity when making in-game impulse purchases. These insights highlight the significant impact of social dynamics and individual psychological traits on consumer behavior in gaming environments. Furthermore, these results emphasize the ethical imperative for game developers to implement protective measures to safeguard consumers from the potential negative effects of in-game impulse purchases.