Professional Experience

• Since 04/2010 Research scientist, Institute of Psychology, University of Duisburg-Essen, Germany
• 03/2010-07/2010 Doctoral thesis submitted and defended, title "Measurement of Cognitive Abilities Using Modern Technologies: Artifacts, Equivalence, and New Constructs"
• 04/2006-03/2010 Research scientist, Institute for Educational Progress (IQB), Berlin, Germany, Main focus: Computer-based ability testing, Fluid and crystallized intelligence, Comprehension skills in English as foreign language
• 01/2005-01/2006 Research scientist, Project "TeDDy-PC. Test for the diagnosis of dyscalculia in 1st, 2nd, 3rd grade", Julius-Maximilians-University Würzburg, Germany, see http://www.teddy-pc.de
• 05/2004 Diploma, title of Diploma thesis "Development of TEDDY - a computer-based test for the diagnosis of dyscalculia in 1st grade", Julius-Maximilians-University Würzburg, Germany

Research Interests

• Computer-based assessment
• Construction and evaluation of innovative measures for student achievement
• Structure and validity of individual differences in fluid and crystallized intelligence
• Science and foreign language comprehension skills
• Diagnosis of mathematical competencies, including math disability
• College admission tests

Publications

• Schroeders, U., & Wilhelm, O. (in press). Equivalence of reading and listening comprehension across test media. Educational and Psychological Measurement.
• Schroeders, U., & Wilhelm, O. (2011). Computer usage questionnaire: Structure, correlates, and gender differences. Computers in Human Behavior, 27, 899–904.
• Schroeders, U., Wilhelm, O., & Bucholtz, N. (2010). Reading, listening, and viewing comprehension in English as a foreign language: One or more constructs? Intelligence, 38, 562–573.
• Schroeders, U. & Wilhelm, O. (2010). Testing reasoning ability with handheld computers, notebooks, and paper and pencil. European Journal of Psychological Assessment, 26, 284–292.
• 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). Washington, DC: American Psychological Association.
• 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, 229–230.
• Wilhelm, O., & Schroeders, U. (2010). Bildung in Zeiten neuer Medien aus kognitionspsychologischer Sicht [Education in times of new media from a perspective of cognitive psychology]. In J.-D. Gauer, & J. Kraus (Eds.). Bildung und Unterricht in Zeiten von Google und Wikipedia [Education and teaching in times of Google and Wikipedia]. Sankt Augustin: 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 Reports. Retrieved March 1, 2010, from http://crell.jrc.it/RP/report transition.pdf
• Schroeders, U. (2009). Computergestützte Diagnostik und Förderung rechenschwacher Kinder am Beispiel von TeDDy-PC (Test zur Diagnose von Dyskalkulie). In Verband Dyslexie Schweiz (Hrsg.), Dyskalkulie – Ansätze zu Diagnostik und Förderung in einer integrativen Schule (S. 53-60). Zürich: Verband Dyslexie Schweiz.
• Schroeders, U. & Schneider, W. (2008). TeDDy-PC. Test zur Diagnose von Dyskalkulie. Hogrefe: Göttingen.
• 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 Reports. Retrieved March 1, 2010, from http://crell.jrc.it/CBA/EU-Report-CBA.pdf
• 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(pp. 204–214). Göttingen: Hogrefe.
• 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. Psychological Science, 49, 88–114.