New in Mplus Summer School: Retract papers with cross-lagged panel models?
Did you know you no longer should use a standard cross-lagged panel model? Longitudinal mediation analyses using a cross-lagged panel design should ALWAYS account for stable between-person differences with random-intercepts. Should we then retract all the papers without such random-intercepts…? Ellen...
New in our Mplus Summer School: a full day on Mediation Analysis by Milica Miočević
New this year will be a day on Mediation Analysis taught by Milica Miočević. Learn why you should not use normal theory confidence limits for testing the significance of the mediated effect, what methods for mediation analysis have the most power,...
Wat zijn de regels van de wetenschap en liggen die voor altijd vast?
“Lang… lang geleden, in een dorp hier ver vandaan, stelden de eerste wetenschappers Vragen. Op een dag besloten zij dat Vragen stellen veel beter ging als ze zich terugtrokken uit het dorp en in een ivoren toren gingen werken. Daar...
Sneak peek Mplus Summer School: Why the first day will feel like a roller-coaster
This summer’s 7th Mplus Summer School program will be nothing like the ones before! In the next week, I will occasionally reveal some new details to keep you guessing. This year I will be teaching the first day of the...
Sneak Peek Mplus Summer School: Nothing’s Like You Used To Know
As seven is a lucky number, we decided to push our luck this year. This summer’s 7th Mplus Summer School program will be nothing like the ones before! In the next week, I will occasionally reveal some new details to...
Symposium at M3 conference accepted
Bayes is growing in all disciplines! This is one of the results found by van de Schoot, Winter, Ryan, Zondervan-Zwijnenburg and Depaoli (in press) in an extensive systematic review.
Presentation about GRoLTS-Checklist
At the Meeting of the Working Group SEM (16 and 17 March 2017; Ghent, Belgium) I will present about the Guidelines for Reporting on Latent Trajectory Studies. March 16 at 14:15-14:45 Abstract: Estimating models within the mixture model framework, like Latent Growth Mixture...
Measurement Invariance
To assess the presence of abstract concepts in people, like prolonged grief disorder, peritraumatic dissociation and students’ motivation, surveys can be used. When concepts are operationalized by means of questions or “items”, they are called “latent variables”.
APS symposium accepted: “Experts and Animals: How Can They Help Us?”
How and to what extend can we use the unique information derived from experts and animals? We discuss how expert opinions can be formalized and included in analyses, how animal studies can provide insight into human behavior, and ways to...
Beyond Null Hypthesis Testing
Many researchers have no particular interest in a null hypothesis assuming that “nothing is going on”, so why test it at all? Evaluating specific, directional expectations produces more insightful results than sequentially testing traditional null hypotheses against catch-all rivals.
Expert Data (Dis)agreement
Elicitation is the process of extracting knowledge about the parameters in the statistical model. This information can then be used to provide input for the prior distribution needed for Bayesian analysis. Several methods of prior elicitation are used in practice...
The Very First Female Inaugural Address at Utrecht University and the Most Recent One
Another Friday, another episode of the Deep-Thinking-project. Today it is exactly 100 years ago, that the very first female inaugural address was given by Johanna Westerdijk at Utrecht University. Back then a female professor was rare, but also today it...