“…It is important to explore the role of these factors. This is because the majority of existing studies focused on only one level of modification degree (e.g., Geeraert, Baayen, & Newman, 2017;Haeuser, Baum, & Titone, 2020;Kyriacou, Conklin, & Thompson, 2020;McGlone, Glucksberg, & Cacciari, 1994;Molinaro, Canal, Vespignani, Pesciarelli, & Cacciari, 2013;Vilkaitė, 2016a;, one age group of children (e.g., Hallin & Van Lancker Sidtis, 2017;Skarabela, Ota, O'Connor, & Arnon, 2021), one proficiency group (e.g., Hernández, Costa, & Arnon, 2016;Jiang & Nekrasova, 2007;Siyanova-Chanturia & Janssen, 2018;Yi, Lu, & Ma, 2017), and one L1 background (e.g., Carrol & Conklin, 2014aCarrol et al, 2016). It remains largely unclear in the current literature whether and how different the processing of FL is with different modification degrees; whether and how different the processing of FL is among different age groups.…”