Organization
Faculty of Foreign Language Studies Assistant Professor
Title
Assistant Professor
Contact information
Profile
Social links
LinkedIn / The Open Science Framework / Google Scholar / ResearchGate
External link
YAMASHITA,Taichi
Degree
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PhD in Applied Linguistics & Technology ( Iowa State University )
Research Interests
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Research Methods
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Language Testing
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Computer Assisted Language Learning
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Second Language Writing
Research Areas
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Humanities & Social Sciences / Foreign language education
Education
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Iowa State University Doctoral Program Applied Linguistics & Technology
2016.8 - 2021.5
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Texas Tech University Masters Program Applied Linguistics
2014.8 - 2016.5
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Wathington University in St. Louis Japanese Teaching Associate Program
2014.6 - 2014.7
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Mie University Faculty of Education English Education
2010.4 - 2014.3
Research History
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Kansai University Faculty of Foreign Language Studies Assistant Professor
2024.4
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Eiken Foundation of Japan Test Production Division Data Analysis, Research & Development
2022.8 - 2024.3
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The University of Toledo Department of World Languages and Cultures Visiting Assistant Professor
2021.8 - 2022.5
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Iowa State University Department of English Research Assistant
2020.5 - 2020.8
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Educational Testing Service Research Intern
2019.6 - 2019.7
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Iowa State University Department of English Teaching Assistant
2018.8 - 2021.5
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Education First Japan Part-time Instructor
2016.6 - 2016.7
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Iowa State University Department of English Research Assistant
2016.5 - 2018.8
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Texas Tech University Classical & Modern Languages & Literatures Teaching Assistant
2014.8 - 2016.5
Papers
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Exploring potential biases in GPT-4o’s ratings of English language learners’ essays Reviewed
Taichi Yamashita
Language Testing 2025.4
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An application of many-facet Rasch measurement to evaluate automated essay scoring: A case of ChatGPT-4.0 Reviewed
Taichi Yamashita
Research Methods in Applied Linguistics 3 ( 3 ) 2024.12
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Sadeghi, K., & Douglas, D. (Eds.). (2023). Fundamental Considerations in Technology Mediated Language Assessment (1st ed.).
Taichi Yamashita
Studies in Language Assessment 2024.12
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Why replicate? Systematic review of calls for replication in Language Teaching Reviewed
Taichi Yamashita, Reza Neiriz
Research Methods in Applied Linguistics 2024.4
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Analyzing Likert scale surveys with Rasch models Reviewed
Taichi Yamashita
Research Methods in Applied Linguistics 2022.12
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Automated written corrective feedback: Error-correction performance and timing of delivery Reviewed
Jim Ranalli, Taichi Yamashita
Language Learning & Technology 2022.11
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Effectiveness and inclusiveness of locally adapted human-delivered synchronous written corrective feedback for English referential articles Reviewed
Taichi Yamashita
Computer Assisted Language Learning 1 - 34 2022.5
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Evaluating the validity of Ottó’s language analytical ability test Reviewed
Taichi Yamashita
Research Methods in Applied Linguistics 1 ( 1 ) 100001 - 100001 2022.4
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The impact of one’s response to the teacher’s feedback on the same person’s and the partner’s learning in paired writing Reviewed
Taichi Yamashita
Journal of Second Language Studies 5 ( 1 ) 58 - 85 2022.1
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Corrective feedback in computer-mediated collaborative writing and revision contributions Reviewed
Taichi Yamashita
Language Learning & Technology 2021.6
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The comparative effects of metalinguistic clue and metalinguistic explanation in computer-mediated form-focused practice: Does prior knowledge matter? Reviewed
Taichi Yamashita
Computer Assisted Language Learning 32 ( 1-2 ) 98 - 117 2019.1
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Rod Ellis (ed): Reflections on Task-Based Language Teaching
Taichi Yamashita, Long He
Applied Linguistics 42 ( 2 ) 366 - 370 2019.1
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The Effectiveness of Structured Input and Structured Output on the Acquisition of Japanese Comparative Sentences Reviewed
Taichi Yamashita, Takehiro Iizuka
Foreign Language Annals 50 ( 2 ) 387 - 397 2017.6
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Review of Written Corrective Feedback for L2 Development
Taichi Yamashita
Journal of Response to Writing 3 ( 2 ) 93 - 97 2017
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Yamashita, T, Hung, H
East European Journal of Psycholinguistics 3 ( 1 ) 140 - 149 2016.6
Books
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Tests that second language teachers make and use
Gorsuch, Greta（ Role： ContributorAn end of chapter quiz and a final examination for beginning-level Japanese language learners）
Cambridge Scholars Pub. 2019.11 （ ISBN:1527539016 ）
Presentations
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Exploring GPT-4o’s bias in the assessment of English language learners’ essays
Yamashita, T
American Association for Applied Linguistics 2025.3
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英作文の自動採点における生成AIの可能性 Invited
山下太一
関西大学メディア懇談会 2024.11
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Exploring ChatGPT’s potential as automated essay scoring with many-faceted Rasch measurement analysis
Technology for Second Language Learning Conference 2024.10
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Divisibility of second language ability across proficiency groups: Evidence from large-scale, operational English tests International conference
Yamashita, T, Nakamura, K
Academic Forum on English Language Testing in Asia (AFELTA) 2023.9
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Construct validity in view of replication in linguistic experimentation
Yamashita, T
American Association for Applied Linguistics (AAAL) 2023.3
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Developing L2 pragmatics instruction materials using task-based needs analysis
Mohammad, A, Yamashita, T
Pragmatics & Language Learning Conference 2022.9
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Perceptions of syntactic complexity: Comparing expert, native speaker, and L2 learner judgments
Saricaoglu, A, Yamashita, T
EuroSLA 2022.8
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An exploratory study on practicality of synchronous corrective feedback in a college-level English-as-a-Second-Language writing classrooms in the United States
Yamashita, T
The Conference of the International Association for Language Learning Technology 2021.6
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A systematic review of calls for replication in Language Teaching: Why do we think we need replication? Invited
Yamashita, T, Neiriz, R
the BAAL/CUP Research Synthesis in Applied Linguistics and TESOL Online Seminar 2021.6
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On a complementary relationship between LAA and revision: Findings from two classroom-based studies
Yamashita, T
UMU L2 Writing Research Seminar 2021.5
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Linguistic needs analysis on email communication for international students at an American university
Muhammad, A, Yamashita, T
American Association for Applied Linguistics (AAAL) 2021.3
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Tracking masked variance in collaborative writing: Do uneven work distributions predict uneven learning?
Yamashita, T
Second Language Research Forum 2020.10
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Corrective feedback in synchronous computer-mediated collaborative writing: Potential interactions among learner-internal, learner-external, and task-as-process factors
Yamashita, T
International Conference on Task-Based Language Teaching 2019.8
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Synchronous automated written corrective feedback: Effects on L2 college students’ revision behavior and text quality
Ranalli, J, Yamashita, T
American Association of Applied Linguistics (AAAL) 2019.3
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The effects of task repetition on the use of epistemic stance markers: Corpus-based study
Yamashita, T
Pronunciation in Second Language Learning and Teaching and Technology for Second Language Learning 2018.9
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The effects of synchronous corrective feedback in computer-mediated collaborative writing
Yamashita, T
Symposium on Second Language Writing 2018.8
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Effects of real-time automated written corrective feedback on self-initiated revision and writing quality
Ranalli, J, Yamashita, T
Symposium on Second Language Writing 2018.8
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The effects of synchronous written corrective feedback in computer-mediated collaborative writing
Yamashita, T
Second Language Research Forum (SLRF) 2017.10
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The effectiveness of synchronous WCF in collaborative writing on the accurate use of English articles
Yamashita, T
Technology for Second Language Learning (TSLL) 2017.9
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The Theorization of Learning Outcome in an Automated Written Corrective Feedback Program; What Distinguishes it from Traditional Corrective Feedback?
Yamashita, T
The Computer Assisted Language Instruction Consortium (CALICO) 2017.5
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Comparing the Quality and Quantity of Automated Corrective Feedback Provided by Grammarly versus MS Word
Ranalli, J, Yamashita, T, Catherine, B
The Computer Assisted Language Instruction Consortium (CALICO) 2017.5
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The Effects of In/direct Corrective Feedback in EFL Writing
Yamashita, T
TESOL International Convention 2017.3
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The effects of explicit and implicit CF on the acquisition of Japanese transaction verbs
Yamashita, T
American Association for Applied Linguistics (AAAL) 2017.3
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The investigation of strategies used by American learners of Hanzi/Kanji
Hung, H, Yamashita, T
American Council on The Teaching of Foreign Languages (ACTFL) 2016.11
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The Effects of Un/Focused and In/Direct Feedback
Yamashita, T
The Japan Association For Language Teaching (JALT) 2016.11
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The significance of triangulation in written corrective feedback research
Yamashita, T
Midwest Association of Language Testers conference 2016.10
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The effectiveness of focused and unfocused corrective feedback on Japanese orthography, overall accuracy, complexity, fluency
Yamashita, T
Symposium on Second Language Writing 2016.10
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The comparative effects of focused and unfocused CF
Yamashita, T
Chubu English Language Education Society 2016.6
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The Effects of Focused and Unfocused Written Corrective Feedback on Japanese Orthography and Learners’ Perception
Yamashita, T
Conference on Applied Linguistics & Intercultural Communication in Higher Education 2016.4
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The effectiveness of focused and unfocused corrective feedback on Japanese orthography, overall accuracy, complexity, fluency
Yamashita, T
TESOL, Applied Linguistics, Foreign Languages Conference 2016.4
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The Investigation of Strategies Used by American Learners of Hanzi and Kanji
Yamashita, T, Hung, H
Conference on Applied Linguistics & Intercultural Communication in Higher Education 2016.4
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The Effectiveness of Structured Input and Structured Output
Farley, A, Iizuka, T, Yamashita, T
Purdue Languages and Cultures Conference 2016.3
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The Investigation of Strategy Use among English Learners of Chinese and Japanese for Learning Hanzi and Kanji
Hung, H, Yamashita, T
Texas Tech University Graduate Student Research Conference 2015.10
Awards
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Membership Grant
2021.6 International Association for Language Learning Technology
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Graduate Student Award
2017.3 American Association for Applied Linguistics
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Presidential Fellowship
2016.8 Iowa State University
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Presidential Award
2014.3 Mie University
Research Projects
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Developing and Validating AI-Powered Interactive Role-Play Tasks for Assessing L2 Pragmatic Competence
Grant number：25K00483 2025.4 - 2029.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
Authorship：Coinvestigator(s)
Grant amount：\26000000 （ Direct Cost: \20000000 、 Indirect Cost：\6000000 ）
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A comprehensive investigation of the impact of generative AI on writing: From the perspectives of process and product
Grant number：25K16380 2025.4 - 2028.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists
Authorship：Principal investigator
Grant amount：\4420000 （ Direct Cost: \3400000 、 Indirect Cost：\1020000 ）
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Quantifying English language learners’ expectations for the effectiveness of language learning apps
2025.4 - 2027.3
Kansai University Kansai University Fund for Supporting Young Scholars
Authorship：Principal investigator
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Uncovering the consistency, severity, and bias of generative AI as an automated essay scoring system
Grant number：24K22479 2024.7 - 2025.3
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Research Activity Start-up
Authorship：Principal investigator
Grant amount：\1300000 （ Direct Cost: \1000000 、 Indirect Cost：\300000 ）
Academic Activities
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International Journal of Applied Linguistics
Role(s)： Peer review
2025 - Present
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Japan Language Testing Association (JLTA) Journal
Role(s)： Peer review
2025 - Present
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Journal of Japanese Linguistics
Role(s)： Peer review
2025 - Present
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Educational Assessment, Evaluation and Accountability
Role(s)： Peer review
2024 - Present
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American Association for Applied Linguistics
Role(s)： Peer review
2024 - Present
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Language Testing
Role(s)： Peer review
2024 - Present
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Academic Forum on English Language Testing in Asia (AFELTA)
Role(s)： Planning, management, etc.
2023.9
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Asian Association for Language Assessment (AALA)
Role(s)： Planning, management, etc.
2023.9
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Language Awareness
Role(s)： Peer review
2023 - Present
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Journal of Writing Research
Role(s)： Peer review
2023 - Present
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Frontiers in Communication
Role(s)： Peer review
2022 - Present
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System
Role(s)： Peer review
2022 - Present
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Research Methods in Applied Linguistics
Role(s)： Peer review
2022 - Present
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Foreign Language Annals
Role(s)： Peer review
2021 - Present
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Studies in Applied Linguistics & TESOL
Role(s)： Peer review
2021 - Present
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Language Learning & Technology
Role(s)： Peer review
2021 - Present
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JALT Journal
Role(s)： Peer review
2021 - Present
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Language Assessment Quarterly
Role(s)： Peer review
2021 - Present
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Computer Assisted Language Learning
Role(s)： Peer review
2020 - Present