en روانشناسی Psychology پژوهشي Original Research Articles <div style="text-align: justify;"><span style="font-size:14px;"><span style="font-family:Tahoma;"><span style="line-height:2;"><strong>Objectives</strong>: The self-determination theory (SDT) posits that basic psychological needs (BPNs) are indispensable and vital nutrients for well-being. The present research was done to apply SDT to understand students&rsquo; well-being, which proposes that the realization and fulfillment of BPNs and subjective vitality significantly influence the overall well-being of an individual. Therefore, the current study analyzed the mediational effect of subjective vitality in the BPN satisfaction and well-being relationship.<br> <strong>Methods</strong>: This study included a sample of 219 (165 females and 54 males) university students with a mean age of 25 years. The basic psychological needs satisfaction and frustration scale (BPNSFS) was used to assess BPNs. Subjective vitality was assessed using a 6-item individual difference version subjective vitality scale by Ryan and Frederick, and well-being was evaluated by the WHO well-being index. Correlational and multiple regression analysis was done and mediational analysis was done using Hayes PROCESS macro.<br> <strong>Results</strong>: The results indicated that fulfillment of BPNs (&beta;=0.413, P<0.01) and subjective vitality (&beta;=0.208, P<0.01) are significant predictors of students&rsaquo; well-being. Mediation analysis showed that subjective vitality completely mediated the relationship between BPN satisfaction and well-being. Furthermore, the measures of BPNS (t=2.242) and well-being (t=2.154) differed significantly, while no significant differences were found in subjective vitality (t=0.108) with respect to gender.<br> <strong>Discussion</strong>: The findings of this study highlighted the role of BPN satisfaction and subjective vitality in the promotion of students&rsquo; well-being. Moreover, the present study highlighted the underlying mechanism, through which BPNs influences students&rsquo; well-being. This study contributes to the theoretical literature by emphasizing the vital role played by BPNs and subjective vitality in students&rsquo; well-being.</span><br> <br> <strong>Coresponding author:</strong>&nbsp;Mohammad Saleem,&nbsp;E-mail:&nbsp;Saleemkashmiruniversity@gmail.com</span></span><br> <br> <span style="font-size:11pt"><span style="line-height:200%"><span new="" roman="" style="font-family:" times=""><span style="font-size:12.0pt"><span style="line-height:200%"></span></span></span></span></span></div> Personal autonomy, Mediation analysis, Mental health, Personal satisfaction 543 552 http://irj.uswr.ac.ir/browse.php?a_code=A-10-1920-1&slc_lang=en&sid=1 Mohammad Saleem saleemkashmiruniversity@gmail.com 0000-0001-6344-8652 Yes Department of Psychology, School of Liberal and Creative Arts (Social Science and Languages), Lovely Professional University, Punjab, India. Hadia Javaid hadyasyed@gmail.com 0000-0001-9866-3192 No Department of Psychology, Faculty of Education and Behavioural Science, University of Kashmir, Srinagar, Jammu and Kashmir. Tawsheeba Nisar No Department of Teacher Traning and Non-Formal Education (IASE), Faculty of Education, Jamia Millia Islamia, New Delhi, India