📢New IRIS upload📢 Henry, N. (2025). Comprehension and Prodution Pretest/Posttest. Grammar test / Morphosyntax test from “The Effects of Structured Input and Output on the Acquisition of the Accusative Case in L2 German.” IRIS Database, University of York, UK. doi.org/10.48316/PZP...

📢New IRIS upload📢 Shahiwala, S., & Rahul, D. R. (2025). Qualitative Data on Gamers’ Vocabulary Learning Experiences. Data from “A qualitative analysis of gamers’ experiences with vocabulary acquisition: Insights from grounded theory”. IRIS Database, University of York, UK. doi.org/10.48316/YCA...

📢New IRIS upload📢 Montgomery, C., Balzotti, J., & Hansen, D. (2025). Image credits. Resource list from “Designing authentic language learning simulations to support student engagement.” IRIS Database, University of York, UK. doi.org/10.48316/SPL...

📢New IRIS upload📢 Alamer, A., Sonbul, S., & El-Dakhs, D. (2025). Data from “Revisiting the validity of the vocabulary learning strategies questionnaire using the confirmatory composite analysis (CCA): Setting new directions for the field”. IRIS Database, University of York. doi.org/10.48316/XRB...

📢New IRIS upload📢 McHugh, A. (2025). McHugh Results and Appendices . Analyses from “Exploring the incorporation of peer assessment of intercultural competence in a collaborative online international learning virtual exchange (COILVE) .” IRIS Database, University of York, UK. doi.org/10.48316/JJP...

📢New IRIS upload📢 Zhou, Y., & Zhou, M. (2025). Supplementary materials. Coding scheme from “A meta-analysis on mobile-assisted vocabulary learning: Do mobile applications help?” IRIS Database, University of York, UK. doi.org/10.48316/81U...

📢New IRIS upload📢 Lee, J. (2025). Factors Contributing to Student Engagement Across Groups. Analyses from “EFL adolescents’ engagement in artificial intelligence and peer interaction.” IRIS Database, University of York, UK. doi.org/10.48316/YPK...

📢New IRIS upload📢 Teimouri, Y. (2025). L2 grit scale. Questionnaire from “What Really Drives Language Learning Success: Talent or hard work?” IRIS Database, University of York, UK. doi.org/10.48316/K1N...

📢New IRIS upload📢 Levasseur, C., & Allen, M. (2025). Postprint of Journal Article “Les freins à la prise en compte de la pluralité linguistique à l’école francophone : perspectives enseignantes.” IRIS Database, University of York, UK. doi.org/10.48316/DWN...

📢📢📢The fifth round of the IRIS Replication Award is now open for submissions and will close at midnight (GMT) on 30th November 2026. ▶️For more information or to submit your application, please follow this link: www.iris-database.org/replication-...

Open access + OASIS plain-language summaries = more views, downloads & citations — a practical path to more inclusive, impactful research! doi.org/10.1515/appl...

📢New IRIS upload📢 Borden, R., Liu, B., & Wu, K. (2025). HLTP Survey Instrument. Questionnaire from “High-leverage Practices in Action: WL Teachers’ Self-Reported Use of HLTPs in the K-12 Classroom.” IRIS Database, University of York, UK. doi.org/10.48316/BZD...

📢New IRIS upload📢 Nahatame, S., & Yamaguchi, K. (2025). R and Python code for statistical analysis. Code from “Relative Importance of Lexical Features in Word Processing During L2 English Reading.” IRIS Database, University of York, UK. doi.org/10.48316/WFL...

📢New IRIS upload📢 Nahatame, S., & Uchida, S. (2025). Datasets of word-level eye-tracking measures along with predictors. Data from “Relative Importance of Lexical Features in Word Processing During L2 English Reading” [Data set]. IRIS Database, University of York, UK. doi.org/10.48316/QY9...

📢New IRIS upload📢 Sandu, B. M., Lesuisse, M., & García-Sánchez, S. (2025). Analyses on learner motivations from “Thriving Through Motivational Intelligence: An Intervention Programme Based on Life Capital, Mindset and Vision .” IRIS Database, University of York, UK. doi.org/10.48316/AVY...

📢New IRIS upload📢 Sandu, B. M., Lesuisse, M., & García-Sánchez, S. (2025). Task and instructions from “Thriving through motivational intelligence: An intervention programme based on life capital, mindset and vision.” IRIS Database, University of York, UK. doi.org/10.48316/6GQ...

📢New IRIS upload📢 Nahatame, S., & Yamaguchi, K. (2025). R code for statistical analysis. Code from “Revisiting Text Readability and Processing Effort in Second Language Reading: Bayesian Analysis of Eye-Tracking Data.” IRIS Database, University of York, UK. doi.org/10.48316/FMB...

📢New IRIS upload📢 Nahatame, S., & Yamaguchi, K. (2025). Data from “Revisiting Text Readability and Processing Effort in Second Language Reading: Bayesian Analysis of Eye-Tracking Data” [Data set]. IRIS Database, University of York, UK. doi.org/10.48316/GAN...

📢New IRIS upload📢 Schurz, A. (2025). Coding and analysis protocols from “Exploring the Potential of Extramural English in the Development of Implicit, Automatized, and Explicit Knowledge of Grammar.” IRIS Database, University of York, UK. doi.org/10.48316/DET...

📢New IRIS upload📢 Le, H. T. V., & Ziegler, N. (2025). Describing your friend task. Communicative / Interactive task from “Technology-mediated TBLT and language development for beginning learners of Vietnamese.” IRIS Database, University of York, UK. doi.org/10.48316/ZB4...

📢New IRIS upload📢 González-Fernández, B., & de la Viña, I. (2025). Background and Motivation questionnaire. Questionnaire from “The effectiveness of app-based and classroom-based instruction on L2 learning and motivation”. IRIS Database, University of York, UK. doi.org/10.48316/KjW...

📢New IRIS upload📢 González-Fernández, B., & de la Viña, I. (2025). Postprint of Journal Article “The effectiveness of app-based and classroom-based instruction on L2 learning and motivation” [Other]. IRIS Database, University of York, UK. doi.org/10.48316/VRt...

📢New IRIS upload📢 Nishizawa, H. (2025). R scripts for Nishizawa in FLA. Analyses from “Intelligibility and input variability influence adaptation to unfamiliar L2 pronunciation in L2.” IRIS Database, University of York, UK. doi.org/10.48316/XUE...

📢New IRIS upload📢 Montgomery, C., Balzotti, J., & Hansen, D. (2025). Appendices. Appendices from “Designing Authentic Language Learning Simulations to Facilitate Student Engagement.” IRIS Database, University of York, UK. doi.org/10.48316/RC3...

📢New IRIS upload📢 Montgomery, C., Balzotti, J., & Hansen, D. (2025). J: Instructor Interview Questions. Interview protocol / schedule from “Designing Authentic Language Learning Simulations to Facilitate Student Engagement.” IRIS Database, University of York, UK. doi.org/10.48316/VED...

📢New IRIS upload📢 Montgomery, C., Balzotti, J., & Hansen, D. (2025). H, I: Onboarding & Exit Surveys. Questionnaire from “Designing Authentic Language Learning Simulations to Facilitate Student Engagement.” IRIS Database, University of York, UK. doi.org/10.48316/KBV...

📢New IRIS upload📢 Montgomery, C., Balzotti, J., & Hansen, D. (2025). Selected Inductive Codes, Subcodes, & Examples. Coding and analysis protocols from “Designing Authentic Language Learning Simulations to Facilitate Student Engagement.” IRIS Database, University of York, UK doi.org/10.48316/R4Y...

📢New IRIS upload📢 Montgomery, C., Balzotti, J., & Hansen, D. (2025). G: Design Changes & Feature Requests. Data from “Designing Authentic Language Learning Simulations to Facilitate Student Engagement” [Data set]. IRIS Database, University of York, UK. doi.org/10.48316/9RD...

📢New IRIS upload📢 Montgomery, C., Balzotti, J., & Hansen, D. (2025). E, F: Project Evaluation Checklist & Rubric. Assessment criteria from “Designing Authentic Language Learning Simulations to Facilitate Student Engagement.” IRIS Database, University of York, UK. doi.org/10.48316/JPC...

📢New IRIS upload📢 Montgomery, C., Balzotti, J., & Hansen, D. (2025). Instructional / Intervention / Teaching / Training materials from “Designing Authentic Language Learning Simulations to Facilitate Student Engagement.” IRIS Database, University of York, UK. doi.org/10.48316/XTA...

📢New IRIS upload📢 Montgomery, C., Balzotti, J., & Hansen, D. (2025). Observation protocol / schedule from “Designing Authentic Language Learning Simulations to Facilitate Student Engagement.” IRIS Database, University of York, UK. doi.org/10.48316/BZ1...

📢New IRIS upload📢 Zhang, L. (2025). Participant essay drafts, questionnaires, and questionnaire results. Writing test from “How useful is our feedback: A small-scale mixed study on EAP students’ writing feedback engagement and uptake.” IRIS Database, University of York, UK. doi.org/10.48316/K1E...

📢New IRIS upload📢 Bokander, L. (2025). SweLT Swedish Vocabulary Levels Test [used in 2016 study]. Vocabulary test from “SweLT 1.0 – konstruktion och pilottestning av ett nytt svenskt frekvensbaserat ordförrådstest.” IRIS Database, University of York, UK. doi.org/10.48316/YBI...

📢New IRIS upload📢 Blaker, N. M., & Goebel-Mahrle, T. (2025). Blaker & Goebel-Mahrle CVET+coding_final. Grammar test / Morphosyntax test from “Revisiting the acquisition of the variable perfective past in L2 Spanish during short-term study abroad.” doi.org/10.48316/XUJ...

📢New IRIS upload📢 Ridchenko, M., & Morgan-Short, K. (2025). Postprint of Journal Article “Learning Second/Additional Languages with ADHD: The Role of Memory Systems.” IRIS Database, University of York, UK. doi.org/10.48316/EE8...

📢New IRIS upload📢 Burfoot, S. A. (2025). Business Terminology test, Engagement and Motivation Questionnaire. Data from “Experiential Simulation in an EMI Undergraduate Business Communication Course: A Pilot Study” [Data set]. IRIS Database, University of York, UK. doi.org/10.48316/002...

📢New IRIS upload📢 Nguyen, M. T. T., & Pham, H. T. (2025). A methodological synthesis of research on the effects of instruction in L2 pragmatics. Coding scheme from “A methodological synthesis of research on the effects of instruction in L2 pragmatics.” doi.org/10.48316/NJ6...

📢New IRIS upload📢 Rahming, V. (2025). Interview protocols and Language learner autobiography prompt. Data from “Las voces de Baha-blantes: An analysis of the language learning investment of intermediate students of Spanish at the tertiary level” doi.org/10.48316/SJF...

📢New IRIS upload📢 Zhu, L., Rebuschat, P., Nixon, J. S., & Monaghan, P. (2025). Postprint of Journal Article “Cross-situational learning of morphology.” IRIS Database, University of York, UK. doi.org/10.48316/R57...

📢New IRIS upload📢 Jeong, H., Lindemann, S., Forsberg, J., & Ribbeklint, H. (2025). Instructional / Intervention / Teaching / Training materials from “Fostering Global Englishes listeners: Addressing understanding and attitudes at a Swedish upper-secondary school.” doi.org/10.48316/AJK...

📢New IRIS upload📢 Mallart, C., Simpkin, A., Ballier, N., Stearns, B., Li, J.-Y., Lissón, P., Venant, R., & Gaillat, T. (2025). Analyses from “Assessing the validity of syntactic alternations as criterial features of proficiency in L2 writings in English.” doi.org/10.48316/FMA...

📢New IRIS upload📢 Brown, D. (2025). Productive collocations test from “The development and initial validation of LexCombi 2: a research-oriented elicitation instrument for L2 learners’ productive collocation knowledge.” IRIS Database, University of York, UK. doi.org/10.48316/3VK...

📢New IRIS upload📢 Díaz-Iturrriaga, E. (2025). LAL Survey Dataset. Data from “Understanding English as a Foreign Language Teachers’ Assessment Literacy in the Chilean Context” [Data set]. IRIS Database, University of York, UK. doi.org/10.48316/4GF...

📢New IRIS upload📢 Mokhatebi Ardakani, M., & Tafazoli, D. (2025). Interview protocol / schedule from “Heritage Language Learners’ Language Availability and Choice: A Case Study of Primary School Persian Learners in Australia.” IRIS Database, University of York, UK. doi.org/10.48316/BPA...

📢New IRIS upload📢 Jadoulle, P., Dubois, T., Degrave, P., & Paquot, M. (2025). Questionnaire from “Developing a survey on motivations, attitudes, and challenges of non-native participants in English-taught MOOCs.” IRIS Database, University of York, UK. doi.org/10.48316/AZ4...

📢New IRIS upload📢 Begmatova, K., & Saydazimova, I. (2025). Written learner output. Data from “Enhancing Learners’ Academic Writing Skills: A Comparative Analysis of Traditional and AI-assisted Instruction Approaches” [Data set]. IRIS Database, University of York, UK. doi.org/10.48316/YGY...

📢New IRIS upload📢 Bryfonski, L., Pineault, C., & Fujii, A. (2025). Task characteristic analysis. Communicative / Interactive task from “Examining teachers’ evaluations of task characteristics: Lessons from two teacher education contexts.” IRIS Database, University of York. doi.org/10.48316/IIT...

📢New IRIS upload📢 Fujita, H. (2025). Code For Formal Modelling. Code from “Formal computational modelling in second language sentence processing research.” IRIS Database, University of York, UK. doi.org/10.48316/LCG...

📢New IRIS upload📢 Zólyomi, A., & Széll, Z. (2025). Teacher-researcher identities interview guide. Interview protocol / schedule from “Understanding dual teacher and researcher identities: A multiple-case Study in the Hungarian context.” IRIS Database, University of York, UK. doi.org/10.48316/MGH...

📢New IRIS upload📢 Huang, J., & Mizumoto, A. (2025). Postprint of Journal Article “The role of generative AI in mediating L2MSS and engagement with written feedback in EFL learning: A structural equation modeling approach.” IRIS Database, University of York, UK. doi.org/10.48316/V5V...