Automatic Analysis of school textbooks’ syntactic complexity

Keywords: Syntactic Complexity, Syntactic Dependency Length, School textbooks, automatic analysis

Abstract

The purpose of this study was to automatically compare the syntactic complexity of texts used to communicate knowledge in the school textbooks of three school subjects (Language and Communication, Natural Science, and History, Geography and Social Science). To do so, we collected a corpus of 2121 instances of the pedagogic genre Content Exposition (Ibáñez, Moncada, Cornejo y Arriaza, 2017), present in the school textbooks that the State of Chile provides to sixth, seventh, and eighth graders attending public schools. Texts were automatically analyzed by an algorithm that identifies syntactic dependency relations in a sentence and also calculates the Syntactic Dependency Length (SDL) of that sentence. Results showed that the SDL of the analyzed texts -corresponding to different levels and school subjects- was homogeneously low. Besides, it was possible to observe that there was not a pattern of incremental complexity associated to school levels. Results also showed that while it was not possible to identify disciplinary patterns that allowed the identification of school subjects exhibiting more CS,  there was a tendency that places  History, Geography and Social Science as the most syntactically complex.

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Published
2022-06-14
How to Cite
Ibáñez Orellana R., Zamora Osorio J., Cisnero Correa M. y Aguirre Rozas S. (2022). Automatic Analysis of school textbooks’ syntactic complexity. Círculo de Lingüística Aplicada a la Comunicación, 91, 127-142. https://doi.org/10.5209/clac.79977