The JDMx meeting for early-career researchers is a platform for PhD students and early post docs active in the judgment and decision making community. Participants have the opportunity to present their work and network with other colleagues in similar stages of their career. The ninth annual meeting takes place from June 8th until June 11th 2016 in Basel, Switzerland, and is organized and run by the PhD students of the Economic Psychology of the University of Basel. The meeting will feature keynotes from distinguished researchers in the field, workshops to improve crucial scientific skills, and cultural and social events.

We especially welcome applications from the fields of psychology, economics, cognitive science, and others concerned with the human judgment and decision making.

Detailed schedule and further Information

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Jörg Rieskamp

Jörg Rieskamp is a professor of psychology at the Department of Psychology of the University of Basel, Switzerland. He is dean of studies and chairman of the examination committee. He received his Ph.D. in psychology from the Free University of Berlin, Germany. In his research he focuses on the development and testing of cognitive theories of judgment and decision processes. The theories provide a description of the underlying cognitive processes leading to a decision. They also provide an explanation of why human behavior often differs from the predictions of economic theory. Recent research topics cover sequential sampling models of decision making, learning models of investment decisions, Bayesian models of strategy selection, and neural underpinnings of decisions under risk.

Gordon D. A. Brown

Gordon Brown is a professor of psychology at the University of Warwick. He received his Ph.D in psychology from the University of Sussex. After being lecturer and senior research officer at different universities such as the University of Essex and the University of Wales, Bangor, he started as a full professor at the University of Warwick. His main interests lay in psychology, economics, and consumer behaviour. Specifically, Gordon Brown is investigating models of human timing and memory, reading, scale-invariant cognition, and oscillator-based dynamic models of timing, memory, and sequential behaviour.

Eldad Yechiam

Eldad Yechiam is an associate professor of behavioral sciences at the Technion - Israel Institute of Technology. He received his PhD in 2003 from the Technion. After being a postdoctoral fellow at the University of Indiana, Bloomington, he returned to the Technion in 2005 as a senior lecturer. He is mainly interested in perception and effects of losses and gains, influence of forgone payoffs in decisions from experience, the complaint bias, and individual differences in decision making.

Important Dates

  • Abstract submission open: 29/1/2016
  • Abstract submission deadline: 8/4/2016
  • Confirmation: 15/4/2016
  • Registration period: 15/4/2016 - 29/4/2016
  • Conference and Workshop: 8/6/2016 - 11/6/2016

Application Information/Registration

The application has been closed! To register, please fill in the online registration!

There will only be oral presentations and presentation time will be 20 minutes, including 5 minutes for discussions. 

The participation is free (no fee is required)!


Writing and sharing data and analyses with R

Nathaniel Phillips

Center for Economic Psychology, University of Basel

This morning, a fellow scientist requested your raw data and analyses for a paper you wrote 5 years ago — what do you do? If you’re like most scientists, you’ll do one of the following A) Ignore it and pretend you didn’t receive it B) Respond by saying you’ll need some time to find the data - and never get back to it. or C) Spend 20 hours looking for the data and then reanalysing it to make sure that all your original results are the same. Don’t do A, B or C! Instead, do R! Once you've stored your data as an R package, any time a fellow scientist (or your future self) wants to access your raw data, data descriptions, and analyses, all they (or you) need to do is run one line of R code! This workshop covers the basics of how to store all of your data and analysis in an easy-to-store and easy-to-distribute R package. If you don’t use R or don’t have a dataset to use — don’t worry. The tutorial doesn’t require either of these.

The issue of flexibility in computational (and verbal) models of JDM

Dirk Wulff

Center for Adaptive Rationality, Max Planck Institute for Human Development

Science aims to describe the empirical world. To this end research proposes models (or hypotheses) and compares their ability to describe a phenomenon at hand. But how to decide which model is best? Clearly, a good model must accurately capture important characteristics of the empirical phenomenon. For instance, a model of choice must capture that a person chooses risky in one set of problems and safe in another. Accuracy is however not enough. To be useful, a good model should also be relatively inflexible. In this workshop, I explain in simple terms and using examples from JDM the role and nature of flexibility in the evaluation of verbal and computational models. This will encompass a discussion of existing model selection criteria, including Occam’s razor, R2, AIC, BIC, minimum description length, normalized likelihood and Bayes factors, as well as practical demonstrations using the software R.

Prediction contest: How well can you predict what you don't yet know?

Stefan Herzog

Center for Adaptive Rationality, Max Planck Institute for Human Development

Participants will team up in groups and their task is to design an algorithm that makes accurate predictions. The domain used will not be revealed until the workshop started, but for illustration assume that the task is to classify patients as high vs. low at risk from suffering a heart attack. The workshop consists of two parts. (1) All groups receive the same training data, in which for each case (e.g., patient) the values of a set of cues is known (e.g., age; sex: female vs. male; smoker: yes vs. no; etc.) as well as the criterion (e.g., heart attack: yes vs. no). Based on this training data, each group will design an algorithm that predict – only based on the values of the cues –whether or not a new patient will suffer from an heart attack. (2) All algorithms will be tested on a new set of cases, which were not available during the training phase. The group who predicts these new cases most accurately will win a prize.

Travel Info


We have pre-booked a limited amount of beds in a youth hostel in Basel for you ( Prices are from 50 to 130 Swiss Francs, which is quite a good offer.

If you are interested in booking a room there please indicate this on the registration form. We will contact you about your specific wishes as soon as possible. Please remember that these rooms are limited. First come first served.

If you wish to stay in another location or have specific needs, please contact us and we will help you find your perfect spot. You can also contact us if you wish to stay longer than just the conference duration and we will check whether we can arrange this for you.


Most trains to Basel arrive at Basel SBB (Swiss station). This includes trains from Italy and France. From Bahnhof SBB take tram line 1 (towards Dreirosenbrücke) to station Heggenheimerstraße. From there the venue location is in a 3 minute walking distance.

Trains from Germany have an additional stop at Basel Badischer Bahnhof before arriving at Basel SBB. From Badischer Bahnhof take bus line 30 (towards Bahnhof SBB) to Spalentor. From there, the venue location is in a 5-10 minutes walking distance.


The closest airport is the EuroAirport Basel Mulhouse Freiburg. This is a very close airport with connections mostly to other European airports. From EuroAirport take bus line 50 (towards Basel SBB) to Kannenfeldplatz. The venue location is in a 5-10 minute walking distance.

The closest larger airport is the airport in Zürich. From there you can easily take the train to Basel SBB which takes you less than an hour.

About Basel

It is not easy to describe Basel in a few words. Descriptions such as “cultural city of Switzerland” or “university town” are merely an attempt to give some sort of impression of the wealth of culture, history, relaxation and enjoyment to be found in the city. Whether it is a visit to one of the numerous museums, a dip in the Rhine or an evening at the theatre, allow yourself to be inspired by the joys that await you in Basel.

We hope you have a fantastic time here in Basel. (Basel Tourismus)

Important Hint: When you book a room in the suggested youth hostel (see above) and most other hotels and hostels, you will get a travel card for free with wich you can use all public transportation that you need in and around Basel for the time of your stay.

For further tourist information and other nice things about Basel visit or simply write us an email if you whish some inside hints and tricks.