Recent Posts

LNIRT NCME Training Session April 4 2019

A one-day training session will be given using the LNIRT R-package for the joint modeling of response accuracy and response times. The 2019...

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Teaching Experience

Research Master Methodology and Statistics for the Behavioural, Biomedical and Social Sciences (2013 - present). Survey Data...

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Research Master Methodology and Statistics for the Behavioural, Biomedical and Social Sciences

At the University of Twente, we have a 2-year Research Master entitled "Methodology and Statistics for the Behavioural, Biomedical and Social...

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Why Item Response Theory should be used for longitudinal questionnaire data analysis in medical research

In the paper with Rosalie Gorter and Jos Twisk (BMC Medical Research Methodology, 15, 2015) we show the negative impact of using sum scores as...

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