“…Although these features are useful, they represent an impoverished view of readability. Recent years have seen a marked increase in interest in research surrounding machine-learning approaches to secondlanguage readability, with many studies focused on commonly taught languages, such as English Xu et al, 2015;Xia et al, 2016;Vajjala & Lučić, 2018), German (Hancke et al, 2012), Russian (Reynolds, 2016), French (Lee & Vajjala, 2022), Italian (Azpiazu & Pera, 2019), and Spanish (Vásquez-Rodríguez et al, 2022). In addition to studying the readability of individual languages, some researchers have worked to identify language-agnostic properties that can be used for multilingual readability classification (Azpiazu & Pera, 2019).…”