Research
Research
In technology-based performance assessment, a core area of our research group, we address - among others - the following questions:
- Can general knowledge be meaningfully assessed using a smartphone? Which areas of knowledge can be distinguished?
- Can reaction times and incidental data be used to predict which study participants cheat when answering performance tests?
- How does one develop and validate test procedures that allow reliable prediction of study success in psychological and medical study programmes?
In the field of psychometrics, we mainly deal with statistical-methodological questions to improve psychological measurements. This includes, for example, the following questions:
- Can optimization algorithms such as Ant Colony Optimization (ACO) be used to develop reliable, valid, and fair measurement instruments?
- Can machine learning algorithms be used to predict which participants are most likely to drop out of large-scale, longitudinal panel studies?
- How can the influence of continuous contextual variables such as age be reflected in latent modeling of personality change or competence development?
In the field of clinical assessment, we are concerned with the following example questions:
- What characterizes the dynamic interplay of cognition and depressive symptomatology in patients with Parkinson's disease compared to an age-matched control group?
- What dimensional structure underlies clinical measurement instruments when trying to meta-analytically summarize previous findings?
If you are interested in writing a thesis in our department of psychological assessment, please send us an email.
Research ticker
New preprints and publications (last 12 months)
- 29.11.2025 - Speck, K.-L., Jankowsky, K., Scharf, F., & Schroeders, U. (2025, November 29.)Beyond the hype: A simulation study evaluating the predictive performance of machine learning models in psychology. (opens in a new window)
- 25.11.2025 - Breit, M., Brunner, M., Preuß, J., ..., & Preckel, F. (2025, November 25). General intelligence contributions to cognitive performance across ability levels and age: An IPD meta-analysis of child and adolescent norming data. (opens in a new window)
- 22.11.2025 - Achaa-Amankwaa, P., Walter, J., & Schroeders, U. (2025, November 22). Wordle - A Game-Based Assessment of Verbal Ability? (opens in a new window)
- 19.11.2025 - Jankowsky, K., Belobrajdic, N., Weziak-Bialowolska, D., Bialowolski, P., & McGrath, R. E. (2025). Using machine learning to examine the predictive validity of character strengths across cultures. The Journal of Positive Psychology. (opens in a new window)
- 05.11.2025 - Achaa-Amankwaa, P., Walter, J., Hübner, V., Hübner, P., & Schroeders, U. (2025, November 5). Modeling Item Difficulty in Large-Scale Game-Based Language Assessment (opens in a new window)
- 22.10.2025 - Altgassen, E.*, Hartung, J.*, Steger, D., Schroeders, U. & Wilhelm, O. (2025, October 22). From school lessons to life lessons: School knowledge, life knowledge and their relation to biographical experiences. [* Shared first authorship] (opens in a new window)
- 19.10.2025 - Jankowsky, K., McGrath, R.E., & Olaru, G. (2025, October 19). The Big Three-Mini: Development of a Cross-Culturally Invariant Indicator of Fundamental Character Constructs (opens in a new window)
- 10.10.2025 - Busse, F., Zimny, L., Schroeders, U., & Wilhelm, O. (2025). Cloze test performance and cognitive abilities: A comprehensive meta-analysis. Intelligence. (opens in a new window)
- 06.09.2025 - Schroeders, U. (2025, September 6). Crystallized Intelligence: Exploring the Dark Matter of Intelligence. (opens in a new window)
- 17.06.2025 - Schroeders, U., Mariss, A., Sauter, J., & Jankowsky, K. (2025). Predicting juvenile delinquency and criminal behavior in adulthood using machine learning. International Journal of Behavioral Development. (opens in a new window)
- 08.06.2025 - Schroeders, U., Achaa-Amankwaa, P., Walter, J., Endlich, D., Hasselhorn, M., Golle, J., & Goecke, B. (2025, June 8). PINGUIN – Assessing Elementary Students’ Initial Competencies. (opens in a new window)
- 13.05.2025 - Achaa-Amankwaa, P., Trautwein, T., Lenhard, W., & Schroeders, U. (2025). Balancing between categorical and dimensional assessment in short-scale construction using Ant Colony Optimization. European Journal of Psychological Assessment. (opens in a new window)
- 24.04.2025 - Schroeders, U., & Gnambs, T. (2025). Sample size planning in item response theory: A tutorial. Advances in Methods and Practices in Psychological Science (opens in a new window)
- 27.03.2025 - Trautwein, T., Scharf, F., & Schroeders, U. (2025, March 27). Bee Swarm Optimization in Model Specification Search: A Simulation Study. (opens in a new window)
- 06.02.2025 - Schroeders, U., & Achaa-Amankwaa, P. (2025, February 6). Developing NOVA: A Next-Generation Open Vocabulary Assessment. (opens in a new window)