Document Type : Research Article

Authors

1 ¹Ph.D candidate in TEFL, Department of English Language, Tehran South Branch, Islamic Azad University, Tehran, Iran.

2 Assistant Professor in TEFL, Department of English Language, Garmsar Branch, Islamic Azad University, Garmsar, Iran.

3 ³Assistant Professor in TEFL, Department of English Language, Tehran South Branch, Islamic Azad University, Tehran, Iran.

Abstract

This research investigates the effects of task-based activities with varying cognitive load on the acquisition of morphosyntactic structures by EFL learners, focusing on phrasal verbs and verb phrases. It also examines the predictive role of metacognitive knowledge in learners’ recognition and production of these structures. Ninety Iranian EFL learners (58 females, 32 males, aged 18-24) were assigned to three groups: Group A (reading), Group B (reading with textual enhancement), and Group C (reading and text reconstruction). Grammaticality Judgment Tests (GJT) and Editing Tests (ET) evaluated recognition and production. Statistical analyses (regression, correlation, ANOVA) indicated that Group C, with the highest cognitive load, outperformed others. Procedural knowledge correlated with phrasal verb production, while declarative knowledge aligned with structure recognition. Structural Equation Modeling further validated the link between metacognitive knowledge, recognition, and production. The study underscores the importance of cognitively demanding tasks and metacognitive knowledge in improving morphosyntactic learning in EFL contexts.

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