IRIS Database
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IRIS is a collection of instruments, materials, stimuli, data, and data coding and analysis tools used for research into languages. https://iris-database.org/
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🌟 What can you upload to the IRIS database? 🌟

Instruments, materials, stimuli, data, and data coding and analysis tools used for research into languages!

⬇️ Click the link below to learn more! ⬇️

iris-database.org
Materials are freely accessible and searchable, easy to download (for use) and to upload (for contributions that meet the eligibility criteria).
iris-database.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
Please be advised that the criteria have been amended and only studies published (or accepted) from 1st December 2024 onward will be accepted.
irisdatabase.bsky.social
📢📢📢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-...
IRIS: Instruments and Data for Research in Language Studies
www.iris-database.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org
irisdatabase.bsky.social
📢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...
doi.org