The Predictor Factor of Reading Comprehension Performance in English as a Foreign Language: Breadth or Depth

Shima Kameli, Ghazali Mustapha, Salah Alyami


The present study explored the association among vocabulary breadth/size, depth/quality of vocabulary knowledge, and reading comprehension in English as a foreign language. The main intention of this research was to  explore the association of vocabulary knowledge depth/quality and reading comprehension performance. This study was also intended to find out which aspects of vocabulary knowledge, breadth/size or depth/quality, has more significant association with determining EFL learners’ reading comprehension performance. The Vocabulary Level Test (VLT), Word Associates Test (WAT), and Reading Comprehension test (IELTS) have been administered among all the respondents. The participants were 220 adult male and female EFL learners who were learning English in advanced level in BAHAR institute, Shiraz, Iran. The findings revealed that 1) test  scores on vocabulary size/ breadth, depth/ quality of vocabulary knowledge, and reading comprehension were  positively correlated, 2) vocabulary size/ breadth was a stronger predictor of reading comprehension than depth/ Quality of vocabulary knowledge.



Vocabulary breadth/size, depth/quality of vocabulary knowledge, reading comprehension

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