Category: Smaller Project

Kick-off for the project “The myth of null-hypothesis significance testing”

Today we have our first consortium meeting for the project “The myth of null-hypothesis significance testing in scientific research”, subsidized by ZonMW within the call about promoting responsible research practices (see below for more information about the project). The project group consists of Michiel de…

The GRoLTS-Checklist: Guidelines for Reporting on Latent Trajectory Studies

Estimating models within the mixture model framework, like latent growth mixture modeling (LGMM) or latent class growth analysis (LCGA), involves making various decisions throughout the estimation process. This has led to a wide variety in how results of latent trajectory analysis are reported.


Individuals can be conceptualized as a hierarchical system of individuals nested within groups. Such systems can be observed at different ‘levels’, and variables explaining differences between individuals and/or groups may be defined at each level. This leads to research generally referred to as ‘multilevel research’.