The following materials are available for this study: - **[Open access paper][16]** published in [Behavior Research Methods][19] - **[Online Supplement][20]**. An overview of timestamps provided by web-browsers that can be used for internal chronometry - **[Poster][17]** presented at the [NVP Winter Conference 2019][18] - **[Video][1]** of the experiment setup - **[Protocol][2]** of the study procedure - **[Web application][3]** for laptop or smartphone - **[C script][4]** for timing responses via Arduino - **[Data and analysis scripts][15]** ---------- A list of published studies on the timing accuracy of web applications where the source code of the web application is provided: - Neath, Earle, Hallett, & Suprenant (2011). [Paper][5], [Source Code][6] - Garaizar, Vadillo, & López-De-Ipiña (2014). [Paper][7], [Source Code][8] - Barnhoorn, Haasnoot, Bocanegra, & van Steenbergen (2015). [Paper][9], [Source Code][10] - Reimers & Stewart (2015). [Paper][11], [Source Code][12] - Garaizar & Reips (2018). [Paper][13], [Source Code][14] [1]: https://www.youtube.com/watch?v=PjY1p3Mf6Os [2]: https://osf.io/sqxz3/ [3]: https://osf.io/xa86w/ [4]: https://osf.io/q3ytc/ [5]: https://link.springer.com/article/10.3758/s13428-011-0069-9 [6]: https://memory.psych.mun.ca/research/code.shtml [7]: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0109812 [8]: https://osf.io/6j3iz/files/ [9]: https://link.springer.com/article/10.3758/s13428-014-0530-7 [10]: http://www.qrtengine.com/downloads/download-the-qrtengine/ [11]: https://link.springer.com/article/10.3758/s13428-014-0471-1 [12]: https://link.springer.com/article/10.3758%2Fs13428-014-0471-1#SupplementaryMaterial [13]: https://link.springer.com/article/10.3758/s13428-018-1126-4 [14]: https://osf.io/h7erv/files/ [15]: https://osf.io/32pes/ [16]: https://doi.org/10.3758/s13428-019-01321-2 [17]: https://osf.io/z5njq [18]: https://www.societyforbrainandcognition.nl/conference/ [19]: https://www.springer.com/journal/13428 [20]: https://osf.io/2gpcu/