The materials in this project accompany the experiment described in our article in *Glossa: Psycholinguistics* "[Cross-lingual priming of cognates and interlingual homographs from L2 to L1][13]" ([pre-print on PsyArXiv also available][1]). The Supplementary materials for this paper can be downloaded from the [Supplementary materials][12] component page. There is also an associated pre-registration: "[Does recent experience with cognates and interlingual homographs in one’s second language affect processing of these words in one’s native language?][2]". This experiment is a follow-up experiment to [Experiment 2][3] of our 2019 PeerJ article "[Towards a distributed connectionist account of cognates and interlingual homographs: Evidence from semantic relatedness tasks][4]". To reproduce just our analyses, you will only need to download the materials in the components [Processed data][5] and [Analysis scripts][6]. To reproduce the whole chain of data processing and analysis, you should download the materials in the components [Raw data][7], [Processing scripts][8] and [Analysis scripts][9]. Save all files in a single folder and designate this as an RProject (see [here][10]). Running the processing scripts on the raw data will then produce the processed data, which can then be analysed using the analysis scripts. The output (not including the data itself) of the entire analysis chain can be found in the document called [experimentOverview.xlsx][11]. Abbreviations (e.g. "primingSR") are explained in the scripts, but note that the priming task ("primingSR") was conducted in English and the testing task ("testingSR") was conducted in Dutch. Both were semantic relatedness judgements tasks (hence "SR"). Finally, please note that all files were re-uploaded on July 21, 2021 after removing the participants'Prolific IDs to comply with GDPR. Due to time constraints, only the functionality of the processing chain was double-checked. If there are any errors in the analysis scripts and/or they no longer run, please contact us. [1]: https://psyarxiv.com/dehrt [2]: https://osf.io/wk73f/ [3]: https://osf.io/2at49/ [4]: https://peerj.com/articles/6725.pdf [5]: https://osf.io/5qkt2/ [6]: https://osf.io/nrgtz/ [7]: https://osf.io/gwrz2/ [8]: https://osf.io/znkar/ [9]: https://osf.io/nrgtz/ [10]: https://support.rstudio.com/hc/en-us/articles/200526207-Using-Projects [11]: https://osf.io/u8xde/ [12]: https://osf.io/b9az4/ [13]: https://doi.org/10.5070/G601147