Secretariat

Julie Frodyma
Phone: +49 561 804-2951
Mail: julie.frodyma@uni-kassel.de

Education

10/2017Full Professor of Psychological Assessment, University of Kassel
04/2014Junior Professor of Educational Research, Member of the Bamberg Graduate School of Social Sciences (BAGSS), University of Bamberg, positive intermediate evaluation
07/2010PhD, Humboldt-Universität zu Berlin, Title of Thesis: “Measurement of Cognitive Abilities Using Modern Technologies: Artifacts, Equivalence, and New Constructs”, Humboldt-Universität zu Berlin
05/2004Diploma in Psychology, Julius-Maximilians-University Würzburg, Title of Thesis: “TeDDy – Test zur Diagnose von Dyskalkulie in der 1. Jahrgangsstufe”, Julius-Maximilians-University Würzburg

 

Professional Experience

Since 10/2017Full Professor of Psychological Assessment, University of Kassel
04/2017-09/2017Interim Professor of Educational Research (W3, 75%) and Junior Professor (W1, 25%), 2nd phase, University of Bamberg
04/2014-09/2017Junior Professor of Educational Research, Bamberg Graduate School of Social Sciences (BAGSS), University of Bamberg
05/2011-03/2014Research scientist (PostDoc), Institute for Educational Quality Improvement (Prof. Stanat, Prof. Pant), Humboldt-Universität zu Berlin
04/2010-03/2011Research scientist (PostDoc), Department of Psychology, Section Educational and Psychological Assessment (Prof. Wilhelm), University of Duisburg-Essen
04/2006-03/2010Research scientist (PhD student), Institute for Educational Quality Improvement (IQB, Prof. Wilhelm, Prof. Köller), Humboldt-Universität zu Berlin
01/2005-01/2006Research scientist, Department of Psychology, Section Educational Psychology (Prof. Schneider), Julius-Maximilians-University Würzburg
  • Technology-based assessment
  • Measurement of cognitive abilities and educational achievement
  • Machine Learning and Metaheuristics
  • Methodological developments in structural equation modeling (LSEM, MASEM)

Preprints (under review)

  • 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. PsyArXiv.
    preprint  syntax
  • Breit, M., Brunner, M., Preuß, J., Daseking, M., Esser, G., Grob, A., Freudenstein, J.-P., Kieschke, U., Kreuzpointner, L., Pauls, F., Perleth, C., Ricken, G., Schipolowski, S., Schroeders, U., Walter, F., Wilhelm, O., Wyschkon, A., & 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. PsyArXiv.
    preprint
  • Achaa-Amankwaa, P., Walter, J., & Schroeders, U. (2025, November 22). Wordle - A Game-Based Assessment of Verbal Ability? PsyArXiv.
    preprint  reg. report
  • Achaa-Amankwaa, P., Walter, J., Hübner, V., Hübner, P., & Schroeders, U. (2025, November 5). Modeling Item Difficulty in Large-Scale Game-Based Language Assessment PsyArXiv.
    preprint
  • 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. PsyArXiv. [* Shared 1st authorship]
    preprint
  • Schroeders, U. (2025, September 6). Crystallized Intelligence: Exploring the Dark Matter of Intelligence. PsyArXiv.
    preprint
  • Schroeders, U., Achaa-Amankwaa, P., Walter, J., Endlich, D., Hasselhorn, M., Golle, J., & Goecke, B. (2025, June 10). PINGUIN – Assessing Elementary Students’ Initial Competencies. PsyArXiv.
    preprint  syntax / data
  • Trautwein, T., Scharf, F., & Schroeders, U. (2025, March 27). Bee Swarm Optimization in Model Specification Search: A Simulation Study. PsyArXiv.
    preprint  syntax / data  BSO algo

Peer-reviewed articles

Advance online publications

  • Schroeders, U., & Achaa-Amankwaa, P. (2025). Developing NOVA: A Next-Generation Open Vocabulary Assessment. European Journal of Psychological Assessment. Advance online publication.
    preprint  syntax / data  Shiny app
  • 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. Advance online publication. https://doi.org/10.1177/01650254251339392
    preprint  reg. report  syntax
  • 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. Advance online publication. https://doi.org/10.1027/1015-5759/a000892
    preprint  syntax / data
  • Müller, S., Schroeders, U., Bachrach, N., Benecke, C., Cuevas, L., Doering, S., Elklit, A., Gutiérrez, F., Hengartner, M. P., Hogue, T. E., Hopwood, C. J., Mihura, J. L., Oltmanns, T. F., Paap, M. C. S., Pedersen, G., Renn, D., Ringwald, W. R., Rossi, G. Samuels, J., … Zimmermann, J. (2025). Revisiting the structure of DSM-5 section II personality disorder criteria using individual participant data meta-analysis. Advance online publication. Personality Disorders: Theory, Research, and Treatment. https://doi.org/10.1037/per0000736
    preprint  prereg.
  • Schroeders, U., Loos, A., Wiedemann, S., & Jankowsky, K. (2024). Is it just a game? Development and validation of a deductive version of mastermind as measure of reasoning ability. European Journal of Psychological Assessment. Advance online publication. https://doi.org/10.1027/1015-5759/a000855
    open access  reg. report  syntax / data

2025

2024

2023

2022

2021

2020

2019

2018

  • Olaru, G., Schroeders, U., Wilhelm, O., & Ostendorf, F. (2018). A confirmatory examination of age-associated personality differences: Deriving age-related measurement invariant solutions using Ant Colony Optimization. Journal of Personality, 86(6), 1037–1049. https://doi.org/10.1111/jopy.12373
  • Sewasew, D., Schroeders, U., Schiefer, I. M., Weirich, S. & Artelt, C. (2018). Development of sex differences in math achievement, self-concept, and interest from grade 5 to 7. Contemporary Educational Psychology, 54, 55–65. https://doi.org/10.1016/j.cedpsych.2018.05.003
    syntax
  • Hartung, J., Doebler, P., Schroeders, U., & Wilhelm, O. (2018). Dedifferentiation and differentiation of intelligence in adults across age and years of education. Intelligence, 69, 37–49. https://doi.org/10.1016/j.intell.2018.04.003
    syntax
  • Moehring, A., Schroeders, U., & Wilhelm, O. (2018). Knowledge is power for medical assistants: Crystallized and fluid intelligence as predictors of vocational knowledge. Frontiers in Psychology, 9. https://doi.org/10.3389/fpsyg.2018.00028
    open access
  • Gnambs, T., Scharl, A., & Schroeders, U. (2018). The structure of the Rosenberg Self-Esteem Scale: A cross-cultural meta-analysis. Zeitschrift für Psychologie, 226(1), 14–29. https://doi.org/10.1027/2151-2604/a000317
    syntax / data
  • Edossa, A., Schroeders, U., Weinert, S., & Artelt, C. (2018). The development of emotional and behavioral self-regulation and their effects on academic achievement in childhood. International Journal of Behavioral Development, 42(2), 192–202. https://doi.org/10.1177/0165025416687412
    syntax

2017

2016

  • Schroeders, U., Wilhelm, O., & Olaru, G. (2016). Meta-heuristics in short scale construction: Ant Colony Optimization and Genetic Algorithm. PLOS ONE, 11. Article e0167110. https://doi.org/10.1371/journal.pone.0167110
    open access syntax data
  • Moehring, A., Schroeders, U., Leichtmann, B., & Wilhelm, O. (2016). Ecological momentary assessment of digital literacy: Influence of fluid and crystallized intelligence, domain-specific knowledge, and computer usage. Intelligence, 59, 170–180. https://doi.org/10.1016/j.intell.2016.10.003
  • Schroeders, U., Schipolowski, S., Zettler, I., Golle, J., & Wilhelm, O. (2016). Do the smart get smarter? Development of fluid and crystallized intelligence in 3rd Grade. Intelligence, 59, 84–95. https://doi.org/10.1016/j.intell.2016.08.003
    syntax
  • Schroeders, U., Wilhelm, O., & Olaru, G. (2016). The influence of item sampling on sex differences in knowledge tests. Intelligence, 58, 22–32. https://doi.org/10.1016/j.intell.2016.06.003
    syntax
  • Jansen, M., Lüdtke, O., & Schroeders, U. (2016). Evidence for a positive relation between interest and achievement: Examining between-person and within-person variation in five domains. Contemporary Educational Psychology, 46, 116–127. https://doi.org/10.1016/j.cedpsych.2016.05.004
  • Wolf, K., Schroeders, U., & Kriegbaum, K. (2016). Metaanalyse zur Wirksamkeit einer Förderung der phonologischen Bewusstheit in der deutschen Sprache. Zeitschrift für Pädagogische Psychologie, 30, 9–33. https://doi.org/10.1024/1010-0652/a000165
  • Akukwe, B. & Schroeders, U. (2016). Socio-economic, cultural, social, and cognitive aspects of family background and the biology competency of ninth-graders in Germany. Learning and Individual Differences, 45, 185–192. https://doi.org/10.1016/j.lindif.2015.12.009

2015

  • Schroeders, U., Schipolowski, S., & Böhme, K. (2015). Typical intellectual engagement and achievement in math and the sciences in secondary education. Learning and Individual Differences, 43, 31–38. https://doi.org/10.1016/j.lindif.2015.08.030
  • Jansen, M., Schroeders, U., Lüdtke, O., & Marsh, H. (2015). Contrast and assimilation effects of dimensional comparisons in five subjects: An extension of the I/E model. Journal of Educational Psychology, 107(4), 1086–1101. https://doi.org/10.1037/edu0000021
  • Schroeders, U., Schipolowski, S., & Wilhelm, O. (2015). Age-related changes in the mean and covariance structure of fluid and crystallized intelligence in childhood and adolescence. Intelligence, 48, 15–29. https://doi.org/10.1016/j.intell.2014.10.006
  • Jansen, M., Scherer, R. & Schroeders, U. (2015). Students’ self-concept and self-efficacy in the sciences: Differential relations to antecedents and educational outcomes. Contemporary Educational Psychology, 41, 13–24. https://doi.org/10.1016/j.cedpsych.2014.11.002

2014

  • Schroeders, U., Robitzsch, A., & Schipolowski, S. (2014). A comparison of different psychometric approaches to modeling testlet structures: An example with c-tests. Journal of Educational Measurement, 51(4), 400–418. https://doi.org/10.1111/jedm.12054
    syntax
  • Schipolowski, S., Schroeders, U., & Wilhelm, O. (2014). Pitfalls and challenges in constructing short forms of cognitive ability measures. Journal of Individual Differences, 35(4), 190–200. https://doi.org/10.1027/1614-0001/a000134
  • Schipolowski, S., Wilhelm, O., & Schroeders, U. (2014). On the nature of crystallized intelligence: The relationship between verbal ability and factual knowledge. Intelligence, 46, 156–168. https://doi.org/10.1016/j.intell.2014.05.014
  • Jansen, M., Schroeders, U., Lüdtke, O., & Pant, H. A. (2014). Interdisziplinäre Beschulung und die Struktur des akademischen Selbstkonzepts in den naturwissenschaftlichen Fächern. Zeitschrift für Pädagogische Psychologie, 28, 43–49. https://doi.org/10.1024/1010-0652/a000120
  • Jansen, M., Schroeders, U., & Lüdtke, O. (2014). Academic self-concept in science: Multidimensionality, relations to achievement measures, and gender differences. Learning and Individual Differences, 30, 11–21. https://doi.org/10.1016/j.lindif.2013.12.003

< 2013

  • Schroeders, U., Bucholtz, N., Formazin, M., & Wilhelm, O. (2013). Modality specificity of comprehension abilities in the sciences. European Journal of Psychological Assessment, 29(1), 3–11. https://doi.org/10.1027/1015-5759/a000114
  • Schipolowski, S., Wilhelm, O., Schroeders, U., Kovaleva, A., Kemper, C. J. & Rammstedt, B. (2013). BEFKI GC-K. Eine Kurzskala zur Messung kristalliner Intelligenz [BEFKI GC-K. A Short Scale for the Measurement of Crystallized Intelligence]. Methoden, Daten, Analysen, 7, 153–181. https://doi.org/10.12758/mda.2013.010
  • Ehlert, A., Schroeders, U., & Fritz-Stratmann, A. (2012). Kritik am Diskrepanzkriterium in der Diagnostik von Legasthenie und Dyskalkulie. Lernen und Lernstörungen, 1, 169–184. https://doi.org/10.1024/2235-0977/a000018
  • Formazin, M., Schroeders, U., Köller, O., Wilhelm, O., & Westmeyer, H. (2011). Studierendenauswahl im Fach Psychologie. Testentwicklung und Validitätsbefunde. Psychologische Rundschau, 62, 221–236. https://doi.org/10.1026/0033-3042/a000093
  • Schroeders, U. & Wilhelm, O. (2011). Equivalence of reading and listening comprehension across test media. Educational and Psychological Measurement, 71(5), 849–869. https://doi.org/10.1177/0013164410391468
  • Schroeders, U. & Wilhelm, O. (2011). Computer usage questionnaire: Structure, correlates, and gender differences. Computers in Human Behavior, 27(2), 899–904. https://doi.org/10.1016/j.chb.2010.11.015
  • Schroeders, U. & Wilhelm, O. (2010). Testing reasoning ability with handheld computers, notebooks, and paper and pencil. European Journal of Psychological Assessment, 26(4), 284–292. https://doi.org/10.1027/1015-5759/a000038
  • Schroeders, U., Wilhelm, O., & Bucholtz, N. (2010). Reading, listening, and viewing comprehension in English as a foreign language: One or more constructs? Intelligence, 38(6), 562–573. https://doi.org/10.1016/j.intell.2010.09.003
  • Kunina, O., Wilhelm, O., Formazin, M., Jonkmann, K., & Schroeders, U. (2007). Extended criteria and predictors in college admission: Exploring the structure of study success and investigating the validity of domain knowledge. Psychology Science, 49, 88–114.

Monographs

  • Schroeders, U., Schipolowski, S., & Wilhelm, O. (2020). BEFKI 5-7. Berliner Test zur Erfassung fluider und kristalliner Intelligenz (Testform 5-7). Hogrefe.
  • Schipolowski, S., Wilhelm, O., & Schroeders, U. (2020). BEFKI 11-12+. Berliner Test zur Erfassung fluider und kristalliner Intelligenz (Testform 11-12+). Hogrefe.
  • Wilhelm, O., Schroeders, U. & Schipolowski, S. (2014). BEFKI 8-10. Berliner Test zur Erfassung fluider und kristalliner Intelligenz (Testform 8-10). Hogrefe.
  • Pant, H. A., Stanat, P., Schroeders, U., Roppelt, A., Siegle, T., & Pöhlmann, C. (Hrsg.) (2013). IQB-Ländervergleich 2012. Mathematische und naturwissenschaftliche Kompetenzen am Ende der Sekundarstufe I. Waxmann.
  • Schroeders, U. (2010). Measurement of cognitive abilities using modern technologies: artifacts, equivalence, and new constructs. Dissertationsschrift. Humboldt-Universität zu Berlin.
  • Schroeders, U. & Schneider, W. (2008). TeDDy-PC. Test zur Diagnose von Dyskalkulie. Hogrefe.
  • Schroeders, U. (2004). Entwicklung von TEDDY – Ein computergestützter Test zur Diagnose von Dyskalkulie in der 1. Klasse. Unveröffentlichte Diplomarbeit, Julius-Maximilians-Universität Würzburg.

Contributions to edited books

  • Olaru, G., Robitzsch, A., Hildebrandt, A., & Schroeders, U. (2023). An illustration of Local Structural Equation Modeling for longitudinal data: Examining differences in competence development in secondary schools. In S. Weinert, G. J. Blossfeld, & H.-P. Blossfeld (Eds.), Education, Competence Development and Career Trajectories (pp. 153–176). Springer International Publishing. https://doi.org/10.1007/978-3-031-27007-9_7 open access
  • Wilhelm, O., & Schroeders, U. (2019). Intelligence. In R. J. Sternberg & J. Funke (Eds.), The Psychology of Human Thought (pp. 255-275), Heidelberg University Publishing. open access
  • Schroeders, U. (2018). Ability. In M. H. Bornstein (Ed.), The SAGE Encyclopedia of Lifespan Human Development (pp. 1–5). SAGE Publications, Inc. https://doi.org/10.4135/9781506307633.n8
  • Schipolowski, S., Wilhelm, O., & Schroeders, U. (2016). Sprachliche Fähigkeiten und Intelligenz. In J. Kilian, B. Brouër, & D. Lüttenberg (Hrsg.), Handbuch Sprache in der Bildung (S. 523-543). Walter de Gruyter. https://doi.org/10.1515/9783110296358-027
  • Schipolowski, S., Wilhelm, O., Schroeders, U., Kovaleva, A., Kemper, C. J., & Rammstedt, B. (2014). Eine kurze Skala zur Messung kristalliner Intelligenz. Die Kurzskala gc des Berliner Tests zur Erfassung Fluider und Kristalliner Intelligenz (BEFKI GC-K). GESIS Working Papers 2014 (29). GESIS.
  • Schipolowski, S., Wilhelm, O. & Schroeders, U. (2013). BEFKI GC-K. Berliner Test zur Erfassung fluider und kristalliner Intelligenz – GC-Kurzskala. In C. J. Kemper, E. Brähler & M. Zenger (Hrsg.), Psychologische und sozialwissenschaftliche Kurzskalen – Standardisierte Erhebungsinstrumente für Wissenschaft und Praxis (S. 30-34). Medizinisch Wissenschaftliche Verlagsgesellschaft.
  • Siegle, T., Schroeders, U., & Roppelt, A. (2013). Anlage und Durchführung des Ländervergleichs. In H. A. Pant, P. Stanat, U. Schroeders, A. Roppelt, T. Siegle, & C. Pöhlmann (Hrsg.), IQB-Ländervergleich 2012. Mathematische und naturwissenschaftliche Kompetenzen am Ende der Sekundarstufe I (S. 101-121). Waxmann.
  • Schroeders, U., Hecht, M., Heitmann, P., Jansen, M., Kampa, N., Klebba, N., Lenski, A. E., & Siegle, T. (2013). Der Ländervergleich in den naturwissenschaftlichen Fächern. In H. A. Pant, P. Stanat, U. Schroeders, A. Roppelt, T. Siegle, & C. Pöhlmann (Hrsg.), IQB-Ländervergleich 2012. Mathematische und naturwissenschaftliche Kompetenzen am Ende der Sekundarstufe I (S. 141-158). Waxmann.
  • Pant, H. A., Stanat, P., Pöhlmann, C., Hecht, M., Jansen, M., Kampa, N., … Ziemke, A. (2013). Der Blick in die Länder. In H. A. Pant, P. Stanat, U. Schroeders, A. Roppelt, T. Siegle, & C. Pöhlmann (Hrsg.), IQB-Ländervergleich 2012. Mathematische und naturwissenschaftliche Kompetenzen am Ende der Sekundarstufe I (S. 159-247). Waxmann.
  • Schroeders, U., Penk, C., Jansen, M., & Pant, H. A. (2013). Geschlechtsbezogene Disparitäten. In H. A. Pant, P. Stanat, U. Schroeders, A. Roppelt, T. Siegle, & C. Pöhlmann (Hrsg.), IQB-Ländervergleich 2012. Mathematische und naturwissenschaftliche Kompetenzen am Ende der Sekundarstufe I (S. 249-274). Waxmann.
  • Schroeders, U., Siegle, T., Weirich, S., & Pant, H. A. (2013). Der Einfluss von Kontext- und Schülermerkmalen auf die naturwissenschaftlichen Kompetenzen. In H. A. Pant, P. Stanat, U. Schroeders, A. Roppelt, T. Siegle, & C. Pöhlmann (Hrsg.), IQB-Ländervergleich 2012. Mathematische und naturwissenschaftliche Kompetenzen am Ende der Sekundarstufe I (S. 331-346). Waxmann.
  • Jansen, M., Schroeders, U., & Stanat, P. (2013). Motivationale Schülermerkmale in Mathematik und den Naturwissenschaften. In H. A. Pant, P. Stanat, U. Schroeders, A. Roppelt, T. Siegle, & C. Pöhlmann (Hrsg.), IQB-Ländervergleich 2012. Mathematische und naturwissenschaftliche Kompetenzen am Ende der Sekundarstufe I (S. 348-365). Waxmann.
  • Pant, H. A., Stanat, P., Pöhlmann, C., Roppelt, A., Schroeders, U., & Siegle, T. (2013) Der IQB-Ländervergleich 2012: Zusammenfassung und Einordnung der Befunde. In H. A. Pant, P. Stanat, U. Schroeders, A. Roppelt, T. Siegle, & C. Pöhlmann (Hrsg.), IQB-Ländervergleich 2012. Mathematische und naturwissenschaftliche Kompetenzen am Ende der Sekundarstufe I (S. 403-414). Waxmann.
  • Schroeders, U., Wilhelm, O. & Schipolowski, S. (2010). Internet-based ability testing. In S. D. Gosling, & J. A. Johnson (Eds.), Advanced methods for behavioral research on the Internet (pp. 131-148). American Psychological Association. https://doi.org/10.1037/12076-009
  • Wilhelm, O. & Schroeders, U. (2010). Bildung in Zeiten neuer Medien aus kognitionspsychologischer Sicht. In J.-D. Gauer, & J. Kraus (Hrsg.), Bildung und Unterricht in Zeiten von Google und Wikipedia (S. 27-45). Konrad-Adenauer-Stiftung.
  • Schroeders, U. (2009). Testing for equivalence of test data across media. In F. Scheuermann & J. Björnsson (Eds.), The transition to computer-based assessment. Lessons learned from the PISA 2006 computer-based assessment of science (CBAS) and implications for large scale testing (pp. 164-170). JRC Scientific and Technical Report EUR 23679 EN.
  • Schroeders, U. (2009). Computergestützte Diagnostik und Förderung rechenschwacher Kinder am Beispiel von TeDDy-PC. In Verband Dyslexie Schweiz (Hrsg.), Dyskalkulie – Ansätze zu Diagnostik und Förderung in einer integrativen Schule (pp. 53-60). Verband Dyslexie Schweiz.
  • Wilhelm, O. & Schroeders, U. (2008). Computerized ability measurement: Some substantive dos and don’ts. In F. Scheuermann & A. G. Pereira (Eds.), Towards a research agenda in computer-based assessment. Challenges and needs for European Educational Measurement (pp. 76-84). JRC Scientific and Technical Report 23306 EN.
  • Formazin, M., Wilhelm, O., Schroeders, U., Kunina, O., Hildebrandt, A. & Köller, O. (2008). Validitäts- und Nützlichkeitsüberlegungen zur Studierendenauswahl im Allgemeinen mit Präzisierungen für das Fach Psychologie im Besonderen. In H. Schuler & B. Hell (Hrsg.), Studierendenauswahl und Studienentscheidung (S. 204-214). Hogrefe.

Others

  • Gewehr, E., Molz, G., & Schroeders, U. (2022). TBS-DTK-Rezension: Wechsler Adult Intelligence Scale - Fourth Edition (WAIS-IV). Psychologische Rundschau, 73(1), 92–94. https://doi.org/10.1026/0033-3042/a000581
  • Schroeders, U.* & Wilhelm*, O. (2020). Es gibt drei Arten von Lügen: Lügen, verdammte Lügen und Statistiken - Kommentar zu Klauk (2019). Wirtschaftspsychologie, 2, 45-48. [* Shared 1st authorship]
  • Molz, G. , Schulze, R., Schroeders, U. & Wilhelm, O. (2010). TBS-TK Rezension: Wechsler Intelligenztest für Erwachsene WIE. Deutschsprachige Bearbeitung und Adaptation des WAIS-III von David Wechsler. Psychologische Rundschau, 61(4), 229-230. https://doi.org/10.1026/0033-3042/a000042
01/2025 –12/2027

"Facing the Replication Crisis in Machine Learning Modeling" as part of the DFG priority program "META-REP" (SPP 2317), as applicant with Dr. K. Jankowsky, funded by the German Research Foundation (DFG)

09/2024 –08/2027"PINGUIN : Potenzialidentifikation IN der GrUndschule", as applicant with Prof. Dr. U. Trautwein, Jun.-Prof. Dr. J. Golle, Dr. B. Goecke, Prof. Dr. M. Hasselhorn, Dr. P. Loesche, Dr. D. Endlich, Dr. J. Hartung, funded by the Hector Foundation
08/2019 –12/2021Cooperation partner in the stav - student selection association for the development and validation of suitable selection procedures at German medical faculties
04/2018 –04/2020"Extension and application of locally weighted structural equation models to longitudinal data" as part of the priority program "Education as a lifelong process" (SPP 1646) as applicant with Prof. A. Hildebrandt, funded by the German Research Foundation (DFG)
10/2013 –
09/2016		"Basic cognitive ability, declarative knowledge and performance-relevant preferences as determinants of educational success" as part of the "Educational Research Network" as applicant with Prof. O. Wilhelm, funded by the Baden-Württemberg Foundation
2011 –
2020		Development of BEFKI - Berliner Test zur Erfassung fluider und kristalliner Intelligenz, for three age groups BEFKI 5-7, BEFKI 8-10 and BEFKI 11+, Hogrefe-Verlag, in collaboration with Prof. O. Wilhelm and Dr. S. Schipolowski
04/2012
02/2011
09/2010		Development of several student selection tests for Bachelor and Master programs at the Frankfurt School of Finance & Management in German and English, Frankfurt School of Finance & Management, in cooperation with Prof. O. Wilhelm
01/2005 –
01/2006		Development of TeDDy-PC, a computer-based test procedure for the diagnosis of dyscalculia in elementary school, Hogrefe-Verlag, in collaboration with Prof. W. Schneider

 

Recent 1st author papers

Further information

Featured Papers

Crystallized Intelligence

Schroeders, U. (2025, September 6). Crystallized Intelligence: Exploring the Dark Matter of Intelligence. PsyArXiv. https://osf.io/preprints/psyarxiv/snxpw

PINGUIN = Potential identification in elementary school

Schroeders, U., Achaa-Amankwaa, P., Walter, J., Endlich, D., Hasselhorn, M., Golle, J., & Goecke, B. (2025, June 8). PINGUIN – Assessing Elementary Students’ Initial Competencies. PsyArXiv. https://osf.io/preprints/psyarxiv/2xq3d

NOVA = Next-Generation Open Vocabulary Assessment

Schroeders, U., & Achaa-Amankwaa, P. (in press). Developing NOVA: A Next-Generation Open Vocabulary Assessment. European Journal of Psychological Assessment. https://osf.io/preprints/psyarxiv/vhakw