“…Individuals with a high aptitude for something mostly put little effort into acquiring a certain skill and need far less time and practice to reach a high achievement or proficiency level in comparison to age-matched peers ( Carroll, 1958 , 1962 , 1990 ). The concept of language aptitude has gained considerable momentum in the past decades and research has shown that various factors contribute to the overall achievement and proficiency of skills, e.g., environmental influences, personality traits, motivation and other abilities such as musicality or working memory ( Ganschow and Sparks, 1995 ; Dörnyei, 1998 , 2006 ; Sparks and Ganschow, 2001 ; Brown, 2006 ; Biedroń and Szczepaniak, 2009 ; Rota and Reiterer, 2009 ; Biedroń, 2011a , b , 2012 ; Sparks et al, 2011 ; Wen, 2012 , 2016 ; Christiner and Reiterer, 2013 ; Granena and Long, 2013 ; Dörnyei and Ryan, 2015 ; Li, 2015 , 2016 ; Biedroń and Pawlak, 2016a , b ; Singleton, 2017 ; Wen et al, 2017 ).…”