The JASP Blog

Open to all students and academics in the Netherlands, SURFspot offers a large collection of educational software programs at greatly reduced costs. Or, as their own website says, “SURFspot is the ultimate non-profit ICT online store that offers special educational discounts on software, cloud services and hardware exclusively to students and staff of Dutch higher and senior secondary vocational education…

During this year’s JASP workshop in Amsterdam, one of the workshop participants, Dr. Mark Goss-Sampson from the University of Greenwich, brought to our attention an impressive 119-page students’ guide to JASP. This detailed manual explains how to perform many different types of frequentist analyses in JASP. The manual is fully up-to-date (i.e., based on JASP 0.9), and the plan is…

We are delighted to announce that JASP 0.9 is now available on our download page. It includes the following new features and improvements: Filtering: use either R code or a drag-and-drop GUI to select cases of interest (an in-depth explanation on filtering in JASP will be posted soon) The JASP data library: an initial collection of over 50 data sets,…

Our annual JASP workshop takes place in Amsterdam on August 27-28, and there are still places available. The workshop is taught by Richard Morey and myself. This year we will discuss several new features, including Bayesian model averaging for linear regression (based on Merlise Clyde’s BAS package in R) and our newly developed Bayesian A/B test. Below is a summary…

As we announced last week, JASP 0.8.6 is now available on our download page. It includes the following new features: A revamped Bayesian linear regression thanks to the BAS package Multinomial analysis Install JASP on most Linux distributions more easily due to Flatpak support Plots now update directly when resizing them A tooltip for variables so that long names can…

When trying to fit a regression model where the dependent variable is categorical, logistic regression is the weapon of choice. Implemented in JASP 0.8.3, logistic regression just got some nice upgrades in the latest version of JASP, 0.8.5. Logistic regression makes it possible to analyze and learn from data if your outcome variable is categorical in nature, such as whether…

Last week the JASP team received an Email that made our day [after we confirmed it wasn’t spam :-)]. The Email informed us that JASP has been added to Softpedia’s database of software programs for Windows. Written by one of the Softpedia editors, the detailed and positive review features a description text, screenshots, download links, and technical details. You can…

This Friday, the 19th of January, I will defend my PhD thesis titled “Bayes Factors for Research Workers” at the University of Amsterdam. You can download the dissertation from: the UvA repository, or my personal website The cover is illustrated by Viktor Beekman and depicts Harold Jeffreys leading the empirical sciences forward. The title is a reference to both Ronald…

JASP 0.8.5 is now available on our download page. This version provides a relatively modest update: More functionality for the network module Simple main effects for ANOVA Replacement of p-value-based stepwise logistic regression with AIC-based variable selection Improvements for the ODS importer Fixes for several issues kindly pointed out to us on the JASP GitHub page Waiting in the wings…