Abstract
This study aimed to investigate the relationship between metacognitive, multiple intelligence, and reading comprehension of elementary and intermediate EFL learners. To this end, the researchers recruited 60 elementary students of Hasanzadeh high school in grade 10th and 60 intermediate English learners from Bilan-Taymaz English institute in Kazeroun using the Oxford Placement Test. Afterward, the researchers administered the researcher-made reading comprehension test. Furthermore, the Multiple Intelligence Questionnaire and Metacognitions Questionnaire tests were conducted. Participants were asked to complete these questionnaires and to take the reading comprehension test through separate sessions on the Rubika app. The results revealed a significant relationship between the metacognition and reading comprehension of both elementary and intermediate EFL learners. Furthermore, there was a significant relationship between the multiple intelligences of Iranian elementary and intermediate EFL learners and their reading comprehension. According to the next results obtained through SPSS, the researchers found that there is a significant difference between the metacognition of the elementary and intermediate participants. The same result was obtained for multiple intelligence. Keywords: Iranian elementary EFL Learners, Iranian intermediate EFL learners metacognition, Multiple intelligence, Reading comprehension;