| 2023 | Effects of Creativity-Enhanced Tasks on Middle School Students’ English Performance, Creativity, and Perceptions of Students and Teachers on Creativity-Enhanced English Learning | 주하나 | Doctoral Thesis |
| 2013 | Effects of Culturally Responsive Teaching with Technology on Korean EFL Learners' Cultural Awareness and Speaking Performance | 임경진 | Doctoral Thesis |
| 2017 | Effects of Different Voice-Chat Conditions on Korean EFL Learners’ Speaking Ability, Oral Interaction, and Affective Factors | 김나영 | Doctoral Thesis |
| 2018 | Effects of Digital Textbooks on College EFL Learners’ Self-Regulated Learning, Language Skills, and Affective Aspects | 유지연 | Doctoral Thesis |
| 2007 | Effects of Electronic and Traditional Modes on Returnees' Peer Response to Argumentative Writing | 김재경 | Doctoral Thesis |
| 2014 | Effects of Enhanced Input Modes and Text Types on Korean College Learners' Listening and Perception in CALL | 추희영 | Doctoral Thesis |
| 2010 | Effects of Feedback Types on Korean College Students’ English Pronunciation Learning | 강윤형 | Master's Thesis |
| 2005 | Effects of Form-Focused Instructions on Korean EFL Students' Learning of English Unaccusative Verbs | 김은희 | Doctoral Thesis |
| 2010 | Effects of Gradual Release of Responsibility Models on EFL Learners' Writing Performance and Perceptions | 이지원 | Master's Thesis |
| 2016 | Effects of Grammar Support in a Process-Oriented Composition Class on Korean EFL College Students’ Writing | 김수진 | Doctoral Thesis |
| 2010 | Effects of Input Format Types on Korean College English Learners' Performance and Strategy Use in a Web-based Listening Test | 문채영 | Doctoral Thesis |
| 2010 | Effects of Integrative Task on Korean EFL Learners’ L2 Reading and Writing | 김지은 | Doctoral Thesis |
| 2010 | Effects of Interactional Corrective Feedback on Learners’ Noticing of Target Forms in L2 Learning of English | 조혜원 | Doctoral Thesis |
| 2018 | Effects of Interlocutor Proficiency on Test-Takers’ Test Scores, Interaction Patterns, and Anxiety Levels in a Paired Speaking Test | 현일선 | Doctoral Thesis |
| 2011 | Effects of Nonnative English-Speaking Raters' Oral Proficiency Levels on English Speaking Test Ratings and Rating Processes | 유경아 | Doctoral Thesis |
| 2023 | Effects of Oral Interaction with AR-based AI Chatbots on ESL Learners’ Speaking Competence, Interaction Management, Communication Strategies, and Affective Aspects | 강한나 | Doctoral Thesis |
| 2015 | Effects of Repeated Reading on Korean EFL High School Students’ Reading Fluency, Lexical Meaning Access, and Comprehension | 김성희 | Doctoral Thesis |
| 2010 | Effects of Self-directed Web-based Listening Activities and Learning Styles on Korean Learners' English Listening Performance | 김규미 | Doctoral Thesis |
| 2022 | Effects of Story Grammar Instruction on Korean EFL College Students’ Reading Comprehension, Key-Words Recall, and Reading Strategy Use | 이은경 | Doctoral Thesis |
| 2007 | Effects of Synchronous and Asynchronous Peer Feedback on Korean Learners' Writing | 차윤정 | Doctoral Thesis |
