G-factor models such as the bifactor model and the hierarchical G-factor model are
increasingly applied in psychology. Many applications of these models have produced …

This article presents an overview of recent psychometric developments in the area of
multimethod measurement, in which we argue that different types of research designs …

Cross-classified models accommodate data structures that have more than one cluster
variable, which are not nested in each other but overlap. They simultaneously consider all …

We introduce the test difficulty concept from classical test theory to tackle the issue of low
predictive power of implicit association tests (IATs). Following classical test theory, we argue …

There are a variety of instruments for measuring interaction quality of Early Childhood
Education and Care (ECEC) teachers. However, these instruments are extremely resource …

Teachers differ considerably in their judgment accuracy of motivational student
characteristics. Thus far, only few investigations have focused on explaining these …

In 1959, Donald Campbell and Donald Fiske introduced the multitrait-multimethod matrix
(MTMM) as a tool for analyzing convergent and discriminant validity." Convergent validity" …

The social relations model (SRM) is the standard approach for analyzing dyadic data
stemming from round-robin designs. The model can be used to estimate correlation …

A new multiple indicator multilevel latent state-trait (LST) model for the analysis of multitrait–
multimethod–multioccasion (MTMM-MO) data is proposed. The LST-COM model combines …

Objective Multitrait‐multimethod (MTMM) data can be analyzed with single‐indicator
confirmatory factor analysis (CFA‐MTMM) models. Most single‐indicator CFA‐MTMM …