Standardized word-lists and developmental inventories, such as the MacArthur-Bates Communicative Development Inventories and age-of-acquisition norms, are widely established and utilized in research on child English and multilingual language acquisition.
The retrieved papers repeatedly reference established standardized vocabulary norms (such as Kuperman et al., 2012) and standardized instruments like the MacArthur-Bates Communicative Development Inventories (CDIs), which explicitly serve as standardized word lists for assessing child language acquisition. Papers [1], [4], and [8] all rely on or discuss these standardized inventories and norms, fully supporting the claim. No retrieved papers contradict the existence of such lists.