The JASP Blog

For larger donations (> $500), JASP now accepts tax-deductable contributions. To donate from the US, simple visit this UvA website. As you can read there: U.S.-based donors can make tax-deductible contributions to the Friends of Stichting Amsterdams Universiteitsfonds at Myriad USA. Because Myriad USA is a public charity, within the meaning of Sections 501(c)(3) and 509(a)(1) of the IRC, donors may claim…

tldr; On 16-17 February 2026 the Netherlands eScience Center is hosting a two-day JASP hackathon in Amsterdam. The purpose of the hackathon is to guide participants into developing their very own JASP module; the JASP programming team will be present to assist. In order to participate in this hackathon you need to send in an application (details below). Financial support…

The shiny new textbook “Discovering Statistics Using JASP” now has a 44-second promo video on YouTube, courtesy of Sage. What I like about the video is that it shows some of the pages, so you get an overall impression of the book contents. Click on the image below to see the video and marvel at some of the graphs produced…

Earlier this week Jill de Ron attended me to a new tutorial paper on Bayesian equivalence testing in JASP, in press for AMPPS (Advances in Methods and Practices in Psychological Science) and authored by Henk Kiers and Jorge Tendeiro. The paper uses a series of neat graphs and clear explanations to demonstrate how researchers can execute Bayesian equivalence tests (in…

Today František Bartoš attended me to a new tutorial paper on the Bayesian t-test in JASP, in press for the Journal of Advanced Nursing. Based on a quick read this tutorial paper seems to tick all the boxes. It is concise, clear, and correct. Moreover, it sparks joy and I wish I would have written it myself. Kudos to the…

We are proud to announce that JASP 0.95 has been released and is now available on our download page. JASP 0.95 presents a big step forwards, as you can see from the full release notes. Some of the highlights include the following: As the featured image shows, JASP has a new PlotBuilder (available under the “Descriptives” tab), making it even…

On October 3rd, at the 65th ISI World Statistics Congress in The Hague, Johnny van Doorn and I were going to teach the one-day course “Introduction to JASP“. Course description: This course provides a working introduction to JASP, a free and open-source statistical software program with an attractive graphical user interface (jasp-stats.org). With R as its computational core, JASP offers…

We are excited to introduce the  JASP Video Library! This online collection of short screen-recordings offers step-by-step instructions on various JASP features and common analyses. The video library includes essential topics like data filtering, computing sum scores, and reordering nominal variables. Their concise format ensures that the steps are quickly understood, making them a great tool for educational settings. You…

TL;DR: The School of Psychological Science at the University of Bristol has recently joined the JASP Community as a bronze member. Welcome! Several universities and institutions have joined the JASP Community and together support the continued development of JASP.  The vision is that institutions of higher learning can increase the quality of their statistics courses by adopting a software program that…