The JASP team is excited to support four workshops this year (2026). Each of these workshops can be attended either in person (at the University of Amsterdam) or online: On Monday August 24th, we orga...

We are happy to announce that the JASP team will offer a week of workshops in Amsterdam this summer.  In this blogpost we’ll highlight the last workshop: “Theory and Practice of Bayesian Hypothesis Te...

We are happy to announce that the JASP team will offer a week of workshops in Amsterdam this summer.  In this blogpost we’ll highlight the third of four workshops: “A Crash Course in Machine Learning ...

We are happy to announce that the JASP team will offer a week of workshops in Amsterdam this summer.  In this blogpost we’ll highlight the second of four workshops: “State-of-the-Art Meta-Analysis usi...

We are happy to announce that the JASP team will offer a week of workshops in Amsterdam this summer.  In this blogpost we’ll highlight the first of four workshops: “Discovering Statistics Using JASP“....

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 con...

A week ago I started a small quality control project where I measured twenty “1 kg” Albert Heijn (AH) potato bags in order to assess whether or not AH is systematically underfilling them, as some soci...

A few days ago I announced a small quality control project where I would measure 20 bags of “1 kg” Albert Heijn (AH) potato bags to assess whether or not AH is systematically underfilling them, as som...

Recent social media posts have shocked Dutch society to its core, prompting public outrage and cries for tribunals. What had happened? Well, a few customers of the largest supermarket chain in the Net...

In our last post we discussed the boxplot of the distances to the sun for each of the eight planets in our solar system, as measured in astronomical units (AU; AU=1 is the average distance from the ea...

In this post we will take a closer look at the boxplot, a ubiquitous tool for data visualization (e.g., Tukey, 1977). The data set that we will use to highlight the key concepts is relatively small: S...

In the previous post we started to analyze a dataset from the JASP Data Library. This dataset involved an instrument that was used to measure the same part 50 times. Such data allow us to determine th...

To showcase how JASP can be used for statistical quality control we initiate a series of blog posts in which JASP is used to execute key statistical tasks. In this series’ inaugural post, I will go ov...

In 2025, the IgNobel prize in Biology went to research on “whether cows painted with zebra-like striping can avoid being bitten by flies“. Suppose a fictitious company, ZebraCows, wishes to exploit th...

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 hig...

An increasing number of Master Black Belts are delivering quality control training with JASP. To support their efforts and enhance their visibility we are launching the JASP Quality Control Network. I...

NB. This contribution is also posted on the JASP website. Author: Martin Hayden, Master Black Belt at LearnSixSigma.co.uk discovers JASP. If you are practising Six Sigma today, the good news is that y...

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In the past few years, a number of companies have requested that we offer service to go with the JASP software. In order to fulfill such requests we recently founded JASP Services BV. Check out our br...

JASP is an open-source statistics program that is free, friendly, and flexible. Armed with an easy-to-use GUI, JASP allows both classical and Bayesian analyses.

We are happy to announce the “Great Graphs with JASP 2025” Competition. Email us your most beautiful, elegant, and insightful JASP graph and you stand a chance to win a prize! Any graph is eligible, a...

Last November, JASP was present in the exhibition hall at the 65th Annual Meeting of the Psychonomic Society. This year’s event brought us to Times Square, right between the skyscrapers of New York Ci...