“…The principal instrument used in this study was The Oxford Happiness Questionnaire which has been adapted by a number of authors apart from the creators Hills and Argyle (2002) who used it as a compact scale for the measurement of psychological well-being. They were followed by other authors, such Kashdan (2004), also studying the assessment of subjective wellbeing; Cruise, et al (2006), testing-retesting data over two weeks; Hadinezhad and Zaree (2009), who tested the reliability, validity, and normalisation of the Oxford Happiness Questionnaire; Robbins et al (2010) analysing undergraduate students in the topic happiness as stable extraversion; an adaptation of the Short Form of the Oxford Happiness Questionnaire into Turkish by Doğan and Çötok (2011) and Dogan and Sapmaz (2012); a Farsi version among college students (Mahmoud et al, 2013); applied to university students in Teheran (Dehshiri et al, 2016); a Indonesian version by Rahmawati et al (2016); a transformation from an ordinal to an interval measure using Rasch analysis (Medvedev et al, 2017); applied to a Russian sample by Golubev and Dorosheva (2017); or Minaei and Hasani (2018), applying Rasch analysis to estimate and improve measurement quality of Oxford Happiness Questionnaire; the application among second year MBBS students (Kamthan et al, 2019); the Chinese version applied in Taiwanese Adolescents: Taiwan Birth Cohort Study (Lung, Shu, 2020) and the Portuguese sample (Galvão et al, 2020); the validation and adaptation of Tamil applicable to patients with type-2 diabetes by To et al (2020); or more recently, applied to a sample of Iranian military (Mirzaee et al, 2021).…”