RT Journal Article T1 A longitudinal study of L2 historical writing: Lexical richness and writing proficiency in Content and Language Integrated Learning A1 Granados Navarro, Adrián A1 López-Jiménez, María Dolores A1 Lorenzo Bergillos, Francisco K1 Lexical richnessCLIL K1 L2 writing proficiency K1 History literacy K1 Coh- Metrix K1 CLIL AB Unlike most research performed to date on writing proficiency in formal settings—which is cross-sectional and unrelated to disciplinary content—the aim of this paper is to offer a longitudinal description of the lexical richness in the L2 historical writing of CLIL bilingual secondary school students over a three-year period. The automated tool Coh-Metrix 3.0 was used to analyse the evolution of the lexical diversity, density and sophistication of a learner corpus made up of 75 history essays composed by the same 15 students as part of their L2 (English-taught) history lessons. The results show an increase in the number of lexical items employed by the students and in the abstractness and associability of these items. This indicates that students improved their lexical richness, while developing their writing proficiency and history literacy skills. PB Asociacion Europea de Lenguas para Fines Especificos YR 2022 FD 2022-06-24 LK https://hdl.handle.net/10433/20481 UL https://hdl.handle.net/10433/20481 LA en NO Granados, A., López-Jiménez, M. D., & Lorenzo, F. (2022). A longitudinal study of L2 historical writing: Lexical richness and writing proficiency in Content and Language Integrated Learning. Ibérica, (43), 129–154. https://doi.org/10.17398/2340-2784.43.129 NO Departamento de Filología y Traducción de la Universidad Pablo de Olavide DS RIO RD May 9, 2026