On Theory
What is a good theory, and what is a bad one? In this blog, I’ll introduce theories, models, phenomena, data, and how they relate to each other. I’ll explain what… Read more »
Category Archives: My work
Modeling idiographic and nomothetic dynamics of 255 depressed inpatients
Led by the first author Kaat Hebbrecht, we published an open access paper a few days ago on “Understanding personalized dynamics to inform precision medicine: a dynamic time warp analysis… Read more »
ERC Starting Grant on predicting depression onset
I’m extremely happy, proud, humbled, and somewhat nervous announce that my application for an European Research Council (ERC) Starting Grant was successful (on my first try!), following the announcement by… Read more »
Measuring depression outcomes that matter to patients, caregivers, and healthcare professionals
Our team led by the brilliant Astrid Chevance just published a new paper, entitled “Identifying outcomes for depression that matter to patients, informal caregivers and healthcare professionals: qualitative content analysis… Read more »
COVID-19 pandemic and student mental health
The goal of this blog post is to summarize our recent study on COVID-19 and student mental health, and do a bit of science translation of our core findings. You… Read more »
Summary of my academic 2019
One of the problems I’ve been facing in academia is that I don’t take pause and celebrate when things go well — after a published paper, I usually just move… Read more »
First preregistered network replication study with power analysis & open data
I haven’t written blog posts about individual new papers in over a year, but this one is a milestone I’m really proud of: Our new network paper on social media… Read more »
Summary of my academic 2018
Following up on last year’s summary of 2017, I wanted to write up the highlights of my academic 2018: publications, collaborations, achievements and failures, open science, blogging, and some thoughts… Read more »
Failure of the week
In our Clinical Psychology group in Leiden, we have the tradition to share new papers, accepted grant proposal, and other achievements in emails called “Paper of the Week”, “Grant of… Read more »
10,377 ways for major depression, but 341,737 ways for melancholia
We wrote up the core arguments and calculations of this blog post as an article for Lancet Psychiatry. Major depression: a highly heterogeneous disorder Major Depressive Disorder (MDD) is a… Read more »
Assistant professor, APS rising star, and some papers
Three brief personal updates. After living in 6 countries in the last 12 years; after affairs and short relationships with Ludwig Maximilian’s University Munich, Free University Berlin, University of Michigan,… Read more »
New paper: “What are psychological constructs?”
One of the fundamental shortcomings of the empirical psychological literature on mental disorders, personality aspects, intelligence, or emotions is that there is a lack of depth regarding the discussion what… Read more »
New paper on stability and accuracy of psychological networks
Our paper “Estimating psychological networks and their accuracy: a tutorial paper” was published in Behavioral Research Methods as open access paper! You can find the full paper here, and the… Read more »
New paper: the 52 symptoms of major depression
I published a new paper in the Journal of Affective Disorders entitled “The 52 symptoms of major depression: Lack of content overlap among seven common depression scales” (PDF). The paper… Read more »
New paper on responsiveness of depression rating scales
After reviewing the paper “The relative responsiveness of test instruments can be estimated using a meta-analytic approach: an illustration with treatments for depression” by Kounali et al. 2016, the editor… Read more »