The Effect of Flipped Classroom on Iranian Adolescents: Elementary EFL Learners' Vocabulary Recall and Retention

Abstract

Vocabulary as an inseparable part of language learning has a vital role in communication, which requires to be taught in new approaches. A quasi-experimental method was used to achieve the aims of the current study. In doing this, 48 Iranian female adolescent elementary learners (13-17) were assigned based on the Oxford Quick Placement Test from 70 female students to take part in 4 sessions of treatment. The participants were randomly divided into two groups: an experimental group (n = 24) and a control group (n = 24). The experimental group was taught using the flipped classroom, while the control group was exposed to the conventional methods. Research instruments involving an English language placement test, vocabulary pretest, immediate posttest, and delayed test (the study lasted for 9 weeks). A list of 28 target words was given to both groups. Words were selected by the Lawshe content validity ratio (CVR) and content validity index (CVI) to have validity. The findings of ANCOVA indicated that conducting the flipped classrooms has significant impacts on Iranian adolescent elementary students' vocabulary recall and retention. Hence, it is an applicable approach that carries important implications for teachers, foreign language syllabus designers, and curriculum planners.