scale-development

IMQ (interactive mentalizing questionnaire)

k-fold cross validation for factor analysis

R scripts for "Unobtrusive measurement of self-regulated learning: A clickstream-based multi-dimensional scale" (Education and Information Technologies, 2024). Chapter 4 of my PhD dissertation (TU/e, 2025).

The IRB-approval research proposal for my dissertation: the methodology, instrument design, and analysis plan submitted to the university board to gain authorization to recruit participants and conduct the study. A required step before the field research and the dissertation itself can proceed.

Open-source helper scripts and templates for nursing and clinical research workflows.

A paper-aligned, privacy-preserving R workflow for the Construction Workers’ Safety Attitude Scale (CWSAS), demonstrated using deterministically generated synthetic data.

LLM-based psychological scale item generation and in-silico validation.

Die Coping-Studie II untersucht Bewältigungsstrategien im Umgang mit Herausforderungen und dient der Validierung einer Kurzskala zur Erhebung von Coping-Strategien in deutscher und englischer Sprache. Die Studie wurde im Oktober 2023 als querschnittliche Online-Befragung mit 2.000 Erwachsenen im Alter von 18 bis 74 Jahren aus Deutschland und dem...

Guided R workflow for scale development and construct validation: item screening, factor retention, CFA, reliability, bifactor and higher-order models, measurement invariance, scoring, and theory-specified nomological networks. Every method is placed in its literature and cited.

R tools for substantive and content-validity scale pretesting: item sorting, construct ratings, expert panels, Delphi rounds, judge heterogeneity, and domain coverage, with exact inference, reproducible reporting, and a handoff into empirical validation.