Josh de Leeuw
@joshdeleeuw.bsky.social
Cognitive Scientist at Vassar College. Currently working on open source tools for researchers.
Creator and maintainer: https://www.jspsych.org
Creator and maintainer: https://www.jspsych.org
Not quite yet, at least not in easily usable form. But happy to share preliminary results with anyone interested.
November 8, 2025 at 4:32 PM
Not quite yet, at least not in easily usable form. But happy to share preliminary results with anyone interested.
Either way, it is something to look into and provide guidance about how to speed things up.
What did you use to download the files from OSF?
What did you use to download the files from OSF?
October 16, 2025 at 5:23 PM
Either way, it is something to look into and provide guidance about how to speed things up.
What did you use to download the files from OSF?
What did you use to download the files from OSF?
This is helpful feedback. I think it is a number of files issue. I have some large files (>GB) on OSF that I download into reproducible notebooks and they download quickly. I think the API is slow with processing files in parallel. I don't know if that's a limitation of the server or client.
October 16, 2025 at 5:23 PM
This is helpful feedback. I think it is a number of files issue. I have some large files (>GB) on OSF that I download into reproducible notebooks and they download quickly. I think the API is slow with processing files in parallel. I don't know if that's a limitation of the server or client.
What will happen with API requests made during the downtime?
September 26, 2025 at 2:16 PM
What will happen with API requests made during the downtime?
the important question here is what kind of dinosaurs
September 26, 2025 at 11:29 AM
the important question here is what kind of dinosaurs
I created DataPipe (pipe.jspsych.org) in part to make it possible to host online experiments for free. The docs give an example of how to host for free on github and use datapipe to send data to the OSF.
DataPipe
pipe.jspsych.org
September 25, 2025 at 1:14 AM
I created DataPipe (pipe.jspsych.org) in part to make it possible to host online experiments for free. The docs give an example of how to host for free on github and use datapipe to send data to the OSF.
~10hrs per 1hr in class for a lecture-heavy class. probably more like 3:1 for a seminar style class.
August 30, 2025 at 9:11 PM
~10hrs per 1hr in class for a lecture-heavy class. probably more like 3:1 for a seminar style class.
Is there a good explainer on this point that I could use for teaching? Thinking carefully about how to communicate this for intro cogsci students.
July 21, 2025 at 7:47 PM
Is there a good explainer on this point that I could use for teaching? Thinking carefully about how to communicate this for intro cogsci students.
making this my platform and running in the next governing board election
July 14, 2025 at 7:22 PM
making this my platform and running in the next governing board election
This was a big undertaking, and @anjames2.bsky.social, @ryskin.bsky.social and Josh Hartshorne all pitched in to help plan, analyze, and report the work. Super grateful for wonderful collaborators to do this with. I don't think this project would have made it to publication without Ariel's heroics.
July 8, 2025 at 7:57 PM
This was a big undertaking, and @anjames2.bsky.social, @ryskin.bsky.social and Josh Hartshorne all pitched in to help plan, analyze, and report the work. Super grateful for wonderful collaborators to do this with. I don't think this project would have made it to publication without Ariel's heroics.
This project started in Spring 2021, in my research methods class. Normally my class does replications of EEG studies (e.g., doi.org/10.1525/coll... & doi.org/10.15626/MP....), but in Spring 2021 we had to do the class remotely. So we tackled online eye tracking instead.
Words May Jump-Start Meaning More Than Vision: A Non-Replication of Early ERP Effects in Boutonnet and Lupyan (2015)
We report a replication of Boutonnet and Lupyan’s (2015) study of the effects of linguistic labelling on perceptual performance. In addition to a response time advantage of linguistic labels over non-...
doi.org
July 8, 2025 at 7:57 PM
This project started in Spring 2021, in my research methods class. Normally my class does replications of EEG studies (e.g., doi.org/10.1525/coll... & doi.org/10.15626/MP....), but in Spring 2021 we had to do the class remotely. So we tackled online eye tracking instead.