Statistik: mehr als Erbsen zählen

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Our research is focused on statistical methods in psychological assessment. In particular this area includes methods for the analysis of data from psychometric achievement tests (such as mathematics in PISA or intelligence tests) or personality scales in cross-sectional and longitudinal studies.


Current Research Interests

  • automatic item generation
  • meta-analysis of diagnostic instruments
  • models with latent variables (item response theory, structural equation models)


DFG-Project "The International Cognitive Ability Resource" (ICAR), since 2014

The International Cognitive Ability Resource is a public-domain assessment tool which aims to encourage the broader assessment of cognitive abilities in psychology and other social sciences and facilitate neuropsychological assessment in medical research and practice. More than 100 qualified research groups from all over the world already use the instruments we developed and contribute to their ongoing revision and further development. The ICAR makes use of automatic item generation which yields test items with predictable psychometric properties. Find more on this technique and the possibility to use ICAR-items for your own research on the project's homepage.