Jelte Wicherts

Professor
Scientific practices and methods to identify their weak spots in order to strengthen science.

Email - Website - Twitter

Marcel van Assen

Professor
Statistical methods to combine studies, publication bias, QRPs, fraud, reproducibility, improving pre-registration & registered reports.
Email - Website - Twitter

Marjan Wit.jpg — Marjan Bakker

Assistant Professor
Improving science by investigating problems and possible solutions. Bias, QRPs, power, preregistration.

Email - Website

Michèle Nuijten

Assistant Professor
Improving psychology via empirical research. Bias, errors, reproducibility, & replication. Developer of statcheck: “spellchecker for statistics”.
Email - Website - Twitter

Melissa de Smet

Assistant Professor

Qualitative, mixed methods, experience sampling research. Bridging the research - practice gap in psychology via person-specific measurement.

Email - Website

Xavier Salet

PhD Student
Quality assurance in qualitative socio-cultural research. Debates on its form, effectivity, and desirability.
Email - Website

Cas Goos

PhD Student
Investigating and enhancing the various interventions for improving scientific robustness at the journal level.
Email - Website

Anouk Bouma

PhD Student
Trustworthiness of Monte Carlo simulations from a meta-research perspective.
Email - Website

Jennifer Chen

PhD Student
Guidelines for mixed-methods approaches, and topics of effective knowledge dissemination.
Email

Robbie van Aert

Assistant Professor
Meta-analysis, publication bias methods, assessing replicability of research. Developer of the publication bias method p-uniform.
Email - Website

Tamarinde Haven

Assistant Professor
Research integrity, responsible supervision, qualitative research, mixed methods, open science, reproducibility.

Email - Website

Franziska Rüffer

PhD Student
Meta-analysis, Bayesian statistics, assessing the impact of and accounting for measurement error, survival and longitudinal data analysis.
Email - Website

Tsz Keung Wong

PhD Student
Modelling multiverses and correcting for p-hacking, improving the use of Bayes Factor and statistical tests
Email - Website

Iris Willigers

PhD Student
Psychometric scaling problems and measurement invariance as sources for the variation in causal effects in psychology.
Email

Ben Kretzler

PhD Student
Current scientific practices in testing for heterogeneity; tests for heterogeneous effects; effect sizes of causal effect heterogeneity.
Email

Caspar van Lis

sa

Associate Professor

Developing machine learning methods for research synthesis , like MetaForest, penalized meta-regression, and text mining systematic review.

Email - Website - Mastodon

Esther Maassen

PhD Student

Countering outcome reporting bias by using structural equation modeling; reproducibility, p-hacking, and meta-analyses.

Email - Website - Twitter

Rasoul
Norouzi

PhD Student
Using natural language processing and graph neural networks to create directed acyclic graphs of social science papers and reason over them.
Email - Website

Dennis Peng

PhD Student
Statistical validity and variability in psychological intervention studies.
Email - Website

Tijn van Hoesel

PhD Student
Investigating the impact of spin and other reporting practices in scientific research.
Email - Website

Former Team Members

Anton Olsson Collentine

PhD Student (2019 - 2024)
Website

20140924_143755%5b1%5d.jpeg — Richard Klein

Post-Doc (2019 - 2022)
Website

Hilde Augusteijn

PhD student (2015 - 2022)

Website

Coosje Veldkamp

PhD student (2012 - 2017)
Website

Olmo van den Akker

PhD Student (2017 - 2024)
Website

IMG_0014+Edited.jpg — Amir M. Abdol

Post-Doc (2017 - 2021)

Website

receptie hoofd.jpg — Leonie van Grootel

Lecturer/Researcher (2018 - 2020)
Website

Andrea Stoevenbelt

PhD student (2017 - 2022)
Website

Chris Hartgerink

PhD student (2014 - 2018)
Website

Paulette Flore

PhD student (2013 - 2017)
Lecturer/Researcher (2017 - 2020)
Website