en عمومى General پژوهشي Research <p style="text-align: justify;"><span style="font-size:12px;"><span new="" roman="" times="">This quantitative survey study investigated the role of school principals&rsquo; ethical leadership in promoting knowledge sharing among <strong><span style="font-weight:normal">teachers from various</span></strong><strong> </strong><strong><span style="font-weight:normal">fields,</span></strong><strong> </strong><strong><span style="font-weight:normal">including language education teachers</span></strong> in the national education system, with particular emphasis on the mediating role of psychological ownership. The statistical population consisted of all education teachers in Golestan Province (N = 686), from whom 247 participants were selected through random cluster sampling. Data were collected using the Ethical Leadership Questionnaire (Brown et al., 2005), the Psychological Ownership Questionnaire (Avey et al., 2008), and the Knowledge Sharing Questionnaire (Park & Lee, 2013). The validity of the instruments was confirmed by five experts in the field, and their reliability was established through a pilot study. Quantitative data were analyzed using descriptive and inferential statistics with SPSS and PLS-SEM (SmartPLS 3). The results indicated that principals&rsquo; ethical leadership had a positive and significant direct effect on both psychological ownership and knowledge sharing among <strong><span style="font-weight:normal">teachers from various fields, including language education teachers</span></strong>. Further analysis also confirmed that psychological ownership significantly mediated the relationship between ethical leadership and knowledge sharing. These findings suggest that ethical leadership can strengthen teachers&rsquo; sense of ownership toward their work and encourage collaborative knowledge-sharing behaviors, thereby creating a supportive and interactive school environment that contributes to improving educational practices and student outcomes.<b> </b><strong><span style="font-weight:normal">Future studies may examine whether ethical leadership similarly promotes collaborative professional discourse and knowledge sharing among language teachers and other educational professionals</span></strong><b>.</b></span></span></p> 0 0 http://cals.gonbad.ac.ir/browse.php?a_code=A-10-101-1&slc_lang=en&sid=1 Hamidreza Ghezelsefloo Hamid.ghezel2020@gmail.com 1003194753284600818 1003194753284600818 Yes <b>Hamidreza Ghezelsefloo (Corresponding Author),</b> Assistant Professor of Sport Management, Gonbad Kavous University, Gonbad Kavous, Iran. Email: Hamid.ghezel2020@gmail.com <br/> <b>Masoume Mohammadi,</b> PhD in Sport Management, Mazandaran University, Mazandaran, Iran. Email: mohammadi.sportmanagement@gmail.com Masoume Mohammadi mohammadi.sportmanagement@gmail.com 1003194753284600819 1003194753284600819 No Mazandaran University