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. 2024 Mar 6;53(2):23. doi: 10.1007/s10936-024-10068-7

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — (A) Lexical sophistication shown as the mean ratio of five word types and the total number of words per group. (B) Lexical accuracy shown as the mean percentage of errors from the total number of words in texts. (C) Lexical density shown as the mean ratio of content words and the total number of words per group. (D) Lexical diversity illustrated as the average MATTR score per group