Hopefully we see you all at the upcoming IOPS Summer 2025 conference in Leiden: June 12-13.
So save the date!
IOPS: Winter Conference 2024
We can look back at very interesting presentations and fruitful discussions at the IOPS 2024 Winter Conference at Statistics Netherlands (CBS). Thanks a lot for your active participation! We also would like to thank the local organisers from CBS again for all their efforts to make this IOPS conference a success!
The winners of the Best Poster presentation were Yuqi Liu with ‘A Two-step estimator for growth mixture models with covariates in the presence of direct effects’, and Meike Waaijers with ‘Can LLMs Support Researchers in Creating Candidate Theories?’.
The winner of the Best Oral presentation was Andrés Felipe Peréz Alonso, presenting ‘Mixture Multigroup Structural Equation Modeling: Comparing structural relations across many groups’.
We congratulate Meike, Yuqi and Andrés for their winning posters and presentation.
See some impressions below (click on the pictures to open a large format).

From left to right: Joris Mulder (Chairman IOPS), Meike Waaijers (best poster award), Andrés Felipe Pérez Alonso (best presentation award), Yuqi Liu (best poster award), Reinoud Stoel (CBS/IOPS).
Dissertation Qixiang Fang
On 6 December 2024 Qixiang Fang defended his thesis: Leveraging Measurement Theory for Natural Language Processing Research at Utrecht University (UU). Read more

Dissertation Anna Langener
On 5 September 2024 Anna Langener defended her thesis: From Data Streams to Mental Health Predictions: Improving the use of Passive Measures from Digital Devices at the University of Groningen (RUG). Read more

Dissertation Jeroen Mulder

On 7 June 2024 Jeroen Mulder defended his thesis: Structural Equation Modeling for Description, Prediction, and Causation at the university of Utrecht. Read more.
Dissertation Olmo van den Akker

On 22 March 2024 Olmo van den Akker defended his thesis: Preregistration in psychology: Past, present, and prospects at the university of Tilburg. Read more.
Dissertation Felix Clouth

On 1 March 2024 Felix Clouth defended his thesis: Latent Class Models for Causal Inference at the university of Tilburg. Read more
Dissertation Anton Olsson-Collentine

On 9 February 2024 Anton Olsson-Collentine defended his thesis: Well-reasoned and arbitrary decisions: Investigating how and why research outcomes vary in psychology at the university of Tilburg. Read more
Dissertation Merle-Marie Pittelkow

On 25 October 2023 Merle Pittelkow defended her thesis Assessing Evidence and Uncertainty: Informed Decision Making in Regulatory Drug Approval and Replication Target Selection, at the University of Groningen. Read more
Dissertation Damiano D’Urso

On 7 July 2023 Damiano D’Urso defended his thesis Safeguarding psychological measurement: psychometric approaches to correct for test and agreeing bias, at Tilburg University. Read more