Cognitively Complex Tasks and Individual Differences: Two Influential Factors in Iranian EFL Learners’ Written Text Quality

Document Type: Research Paper


1 Professor of EFL, University of Tabriz

2 Assistant Professor at Department of Basic Sciences, Faculty of Paramedicine, Tabriz University of Medical Sciences


Robinson’s Cognition Hypothesis and Skehan’s Limited Attentional Capacity Model provide the major impetus for this study. The present article reports the findings of a between-subject factorial experimental research study which explored 1) the effects of increased cognitive task complexity, manipulated through the intentional reasoning demands and number of elements on the lexical and syntactic complexity, accuracy, and fluency (CAF) of EFL writers’ productions; and 2) the joint effects of cognitive task complexity factor and learners’ language learning aptitude (Low vs. High) on the written output. Firstly, we gave Carroll and Sapon’s Modern Language Aptitude Test (MLAT) to 226 participants and then did a random stratification of the low- and high- aptitude learners into three groups. The participants received letter writing tasks with different cognitive complexity levels (low, medium, and high). The findings indicated that increasing cognitive task complexity resulted in significantly higher lexical and syntactic complexity and lower fluency, whereas no significant effect was found on writing accuracy. Moreover, the statistical results revealed no significant interaction effect between task complexity factors and learners’ language aptitude. With regard to the first objective of the study, the findings supported the predictions of Cognition Hypothesis while it is not the case in relation to the second objective of the study.


Article Title [Persian]

فعالیتهای معنا محور با سطح پیچیدگیهای شناختی مختلف و تفاوتهای فردی : دو عامل تاثیر گذار بر کیفیت متون نوشته شده توسط زبان آموزان ایرانی

Authors [Persian]

  • فرهمن فرخی 1
  • سیمین ستارپور 2
2 استادیار دانشکده علوم پایه، دانشکده پیراپزشکی دانشگاه علوم پزشکی تبریز
Abstract [Persian]

فرضیه شناختی  رابینسون و فرضیه توازنی اسکیهان، مبنای اصلی تحقیق حاضر می باشند. این مقاله نتایج یک تحقیق تجربی چند عاملی بین آزمودنی را گزارش میدهد.این تحقیق به بررسی تاثیرات افزایش پیچیدگی شناختی فعالیتهای معنا محور و همچنین  تاثیر مشترک این عامل و استعداد یادگیری زبان به عنوان یک تفاوت فردی روی پیچیدگی لغوی، پیچیدگی ساختاری، صحت دستوری، و روانی نوشتار زبان آموران پرداخته است. در ابتدا،  آزمون استعداد زبانی به 226 شرکت کننده داده شد و سپس بر اساس نمونه گیری لایه ای تصادفی تعداد مساوی از زبان آموزان با سطح استعداد زبانی بالا و پایین به سه گروه آزمایشی فرستاده شدند. زبان آموزان فعایت های نوشتاری متفاوتی از لحاظ پیچیدگی شنتاختی دریافت کردند.نتایج نشان دادند که 1) افزایش پیچیدگی فعالیت از لحاظ مقدار بار شناختی منجر به افزایش پیچیدگی ساختاری و لغوی و کاهش روانی کلام شد. تاثیر معنا داری روی صحت دستوری مشاهده نشد; 2) اثر تقابلی معنا داری  نیز بین پیچیدگی شناختی و استعداد زبانی وجود نداشت.  در خصوص هدف اول این تحقیق، نتایج  پیش بینی های مدل فرضیه شناختی رابینسون را که این تحقیق نیز بر روی آنها پایه گذاری شده، تایید می کنند در حالیکه در مورد هدف دوم تحقیق اینگونه نبوده است.

Keywords [Persian]

  • پیچیدگی شناختی فعالیتهای معنا محور
  • استعداد یادگیری زبان
  • پیچیدگی لغوی
  • پیچیدگی ساختاری
  • صحت دستوری
  • و روانی
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