en ● Disease Control مقاله اصيل پژوهشي Orginal Article <div style="text-align: justify;"><span style="font-size:14px;"><span style="font-family:Tahoma;"><span style="line-height:2;"><strong><span style="background:white"><span style="color:black">Background:</span></span></strong><span style="background:white"><span style="color:black">&nbsp;Iranian students are at high risk for cardiovascular disease. A valid tool to measure cardiovascular health-related behaviors is the first step toward preventing such diseases in this population. Therefore, this study aimed to develop and psychometrically validate a cardiovascular health behavior scale for Iranian students.</span></span><br> <strong><span style="background:white"><span style="color:black">Methods:</span></span></strong><span style="background:white"><span style="color:black">&nbsp;This exploratory sequential mixed-methods study was conducted in 2024 among 684 students. Face and content validity were assessed. Construct validity was evaluated using exploratory and confirmatory factor analysis (EFA, CFA). Reliability was measured using McDonald&#39;s omega and Cronbach&#39;s alpha coefficients. Data were analyzed using AMOS, SPSS, and R software.</span></span><br> <b><span style="color:black">Results:</span></b><span style="color:black"> <span style="background:white">Following a systematic review and interviews, an initial pool of 52 items was generated. After removing duplicates and merging similar items, all 52 items had an impact score above 1.5. Following content validity assessment, the number of items was reduced to 36, with a CVR &ge; 0.62 and a CVI ranging from 0.80 to 1. EFA yielded a final 15-item scale with a five-factor structure, which collectively accounted for 54.67% of the total variance. CFA indicated factor loadings ranging from 0.22 to 0.80. The model demonstrated a good fit (IFI, CFI, AGFI > 0.9; PCFI > 0.5; RMSEA = 0.048; CMIN/DF = 1.663). Cronbach&#39;s alpha and McDonald&#39;s omega coefficients for all five factors exceeded 0.8.</span></span><br> <strong><span style="background:white"><span style="color:black">Conclusion:</span></span></strong><span style="background:white"><span style="color:black">&nbsp;The Cardiovascular Health Behavior Scale for Iranian Students is a valid and reliable tool suitable for use in future research.</span></span></span></span></span></div> Students, Questionnaire Design, Psychometrics, Heart Disease Risk Factors 6 6 http://jrh.gmu.ac.ir/browse.php?a_code=A-10-2719-1&slc_lang=en&sid=1 Nasrin Sarabi nasinsaraby06@gmail.com 1 100319475328460047488 No School of Nursing and midwifery, Dezful University of Medical Sciences, Dezful, Iran Rashed Khezri rashedkhezri76@gmail.com 2 100319475328460047489 No Student Research Committee, Dezful University of Medical Sciences, Dezful, Iran Hediyeh Mohaghegh hediyeh.mohaghegh@gmail.com 3 100319475328460047490 No Department of Cardiology, School of Medicine, Ganjavian Hospital, Dezful University of Medical Sciences, Dezful, Iran Fatemeh Pourmotahari4 pourmotahari@yahoo.com 4 100319475328460047491 Yes Department of Community Medicine, School of Medicine, Dezful University of Medical Sciences, Dezful, Iran