Tehran University of Medical Sciences Journal of Medical Ethics and History of Medicine 2008-0387 13 0 2020 11 10 772 772 Erfan Shamsoddin Research Assistant, National Institute for Medical Research Development (NIMAD), Tehran, Iran. Leila Janani Associate Professor, Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. Kiandokht Ghamari Research Assistant, National Institute for Medical Research Development (NIMAD), Tehran, Iran. Payam Kabiri Senior Research Fellow, Department of Biostatistics and Epidemiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. Ehsan Shamsi Gooshki Assistant Professor, Medical Ethics and History of Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran; Department of Medical Ethics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. Bita Mesgarpour Assistant Professor, National Institute for Medical Research Development (NIMAD), Tehran, Iran. 2020 05 27 2020 11 10 Assessment of scientific misconduct is considered to be an increasingly important topic in medical sciences. Providing a definition for scientific research misconduct and proposing practical methods for evaluating and measuring it in various fields of medicine discipline are required. This study aimed at assessing the psychometric properties of Scientific Research Misconduct-Revised (SMQ-R) and Publication Pressure Questionnaires (PPQ). After translation and merging of these two questionnaires, the validity of the translated draft was evaluated by 11-member expert panel using Content Validity Index (CVI) and Content Validity Ratio (CVR). Reliability of the final questionnaire, completed by 100 participants randomly chosen from medical academic members, was assessed by calculating Cronbach’s alpha coefficient. The final version was named Persian Research Misconduct Questionnaire (PRMQ) and consisted of 63 question items. The item-level content validity indices of 61 questions were above 0.79, and reliability assessment showed that 6 out of 7 subscales had alpha values higher than 0.6. Hence, PRMQ can be considered an acceptable, valid and reliable tool to measure research misconduct in biomedical sciences researches in Iran. https://jmehm.tums.ac.ir/index.php/jmehm/article/view/772 https://jmehm.tums.ac.ir/index.php/jmehm/article/download/772/341