Bulletin of the Russian Military Medical AcademyBulletin of the Russian Military Medical Academy1682-73922687-1424Eco-Vector10944410.17816/brmma109444Research ArticleResults of using the multilevel personality questionnaire “Adaptability” during professional psychological selection in the armed forces of the Socialist Republic of VietnamBakFam Hong<p>adjunct</p>bilyi_andrei@mail.ruBilyiAndrei M.<p>doctor of medical sciences, associate professor</p>bilyi_andrei@mail.ruhttps://orcid.org/0000-0002-6133-4368SysoevVladimir N.<p>doctor of medical sciences, professor</p>bilyi_andrei@mail.ruhttps://orcid.org/0000-0002-4315-0039Military Medical Academy of S.M. Kirov040120232446836882207202203112022Copyright © 2023, Eco-Vector2023<p>The study examined the potential use of a multilevel personality questionnaire Adaptability during professional and psychological selection in the Armed Forces of the Socialist Republic of Vietnam. A total of 445 men aged 1826 years who were indigenous Vietnamese living in the Socialist Republic of Vietnam and undergoing military service in the Peoples Navy and Land Forces of the Socialist Republic of Vietnam were examined. An adapted version of the multilevel personality questionnaire Adaptability-4 was used and translated to Vietnamese. The success of military professional activity was assessed based on the results of a survey of direct supervisors who evaluated their subordinates according to a specially designed questionnaire. Based on the statistical analysis of the results, the indicators of the multilevel personality questionnaire Adaptability were normalized, and a table was formed for the translation of raw scores into normalized scores (walls). A formula has also been developed to calculate the success rate according to the discipline criterion, which reveals significant differences between the successful group (average value 5.35 walls) and the unsuccessful group (average value 4.22 walls) at the level of difference <em>p</em> 0.01. The results indicated that the modified version of the multilevel personality questionnaire Adaptability-4 adapted for the military personnel of the Vietnamese Peoples Army and Navy can predict the success of military professional activities according to the discipline domain. The questionnaire can be used during professional psychological selection in the Armed Forces of the Socialist Republic of Vietnam.</p>multilevel personal questionnaire “Adaptability”neuropsychic stabilityprofessional psychological selectionpsychodiagnosticssuccess of military professional activitydisciplinehuman factorreliability of professional activityмногоуровневый личностный опросник «Адаптивность»нервно-психическая устойчивостьпрофессионально психологический отборпсиходиагностикауспешность военно-профессиональной деятельностидисциплиначеловеческий факторнадежность профессиональной деятельности[Bily AM, Sysoev VN. Preimushchestvennyi tip povedeniya lichnosti i uroven’ psikhicheskoi ustoichivosti. Proceedings of the scientific and practical conference dedicated to the 20th anniversary of the formation of the Department of Military Psychophysiology of the Military Medical Academy. Saint Petersburg: VMA; 2017. P. 39–46. (In Russ.).][Bodrov VA. 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