“…Arens et al (2011) revealed that regardless of the high correlations between cognitive and affective dimensions of self-concept, mathematics and language subjects of academic achievement had different correlations with the two components of self-concept. Similar findings of Marsh et al (1999), andArens et al (2011) showed that models would fit better to the data if the two components were separated rather than conflated as there was a higher relationship between achievement with the corresponding domain of self-concept than affective component (cognitive math: r = .61, verbal r = .63; affective math: r = .37, verbal: r = .33; cited in Karimova & Csapó, 2021) Moreover, some studies (Arens et al, 2011(Arens et al, , 2014Marsh & Ayotte, 2003;Marsh et al, 2012) examined the twofold multidimensional structure of self-concept within different countries and cultures. Studying the twofold multidimensional nature of native (Chinese) and nonnative (English) languages, Yang et al (2014) found that Chinese vocational students distinguished between two dimensions of academic self-concept.…”