الموروث

From Lexical Vagueness To Academic Precision: A Corpus - Based Error Analysis Of Problem -based Learning And Efl Writing Development

2026-08-08

Auteurs : Sari Selma . Achili Nora .

Résumé

This mixed method action research examines the impact of a 14 weeks PBL intervention on the writing of 5first year EFL students at the University of Blida 2. Using AntConc and manual error analysis, the study tracks changes in vocabulary, cohesion, grammar, and spelling. The findings show clear improvement, including a 33% reduction in the overuse of basic conjunctions, a more than a threefold increase in academic vocabulary, and a drop in spelling errors from over 25 to only 3. These changes are linked to repeated oral negotiation within PBL, supporting lexical precision and phonological orthographic awareness. Despite the small sample, the consistent results suggest the approach and framework can be applicable in similar EFL contexts.

Mots clés

Problem-Based Learning ; Writing Performance ; Error Analysis ; Corpus Linguistics ; Action Research