• Academic Staff

    Educational Measurement

    Teacher and Teaching Quality

    Rostocker Straße 6
    60323 Frankfurt am Main

    +49 (0)69-24708-122

    c.koehler@dipf.de

  • Since 01/2016
    Research associate at the department of Educational Measurement at the DIPF (Advisor: Johannes Hartig)
    06/2015 – 08/2015
    Internship at the Educational Testing Service (ETS), Princeton, NJ
    2012 – 2015
    PhD student; dissertation topic: "Isn’t Something Missing? Latent Variable Models Accounting for Item Nonresponse", Freie Universität Berlin (Advisors: Steffi Pohl & Claus H. Carstensen)
    2012 – 2015
    Research assistant in the research project “Modeling Missing Data in Competence Tests” of the Priority Programme “Education as a Lifelong Process” (founded by the German Research Foundation [DFG]; PO1655/1-1)
    2011 – 2012
    Tutor for statistics in SPSS im Fachbereich Psychologie der Universität Trier
    2007 – 2012
    Psychology Major, University of Trier
    • Item Response Theory (IRT) models, especially item fit and missing values
    • Latent longitudinal and multilevel models in educational research
    • Models for capturing the effects of teaching
    • Model-based competence diagnostics
    • Digital and media literacy

  • Teachings

    SS 2023
    Seminar „Differential Psychology“ (Goethe University Frankfurt)
    WS 2022/2023
    Practical Course “Statistics for Psychologists: Fundamentals” (Goethe University Frankfurt)
    SS 2022
    Lecture „Introduction to Diagnostics“ (TU Darmstadt)
    WS 2020/2021
    Practical Course: „ Statistics for Psychologists: Fundamentals" (Goethe University Frankfurt)
    SS 2020
    Seminar „Research Methods and Evaluation II“ (Goethe University Frankfurt)

    Workshops

    03/2023
    Workshop „IRT für Fortgeschrittene mit R“ at the Spring School 2023 of the Institut for Educational Quality Improvement (IQB), Berlin, Germany
    03/2023
    Workshop „Einführung in die Item-ResponseTheorie“ within the BMBF funding regulation "Funding-related diagnostics in inclusive education" at the Goethe University Frankfurt
    09/2022
    Workshop „Item-Response-Theorie zur Kompetenzmodellierung und Skalierung in den Bildungswissenschaften“ at the Graduate Academy of Teacher Evaluation Colleges (graph), Karlsruhe, Germany
    05/2020
    Workshop „Einführung in die Item Response Theorie“ per video chat at the Center for Research on Education and School Development (IFS) at the TU Dortmund University, Germany
    09/2019
    Workshop „Einführung in die Item Response Theorie mit R“ during the 2019 Method Week of the Method Center Social Sciences of the Goethe-University Frankfurt, Germany
    • Köhler, C. (2022, June). Modellierung von Effekten im Mehrebenen-Setting: Unter welchen Bedingungen sollte der Prätest zusätzlich auf Level 2 modelliert werden? Invited guest lecture in the statistical-psychometric research seminar of the Leibniz Institute for Educational Trajectories (LIfBi), Bamberg, Germany.
    • Köhler, C. (2021, October). Challenges when Estimating Effects in Nonrandomized Educational Studies. Invited guest lecture at the Centre for Educational Effectiveness and Evaluation, KU Leuven, Belgium.
    • Köhler, C. (2019, October). Detecting Item Misfit in Educational Testing. Invited guest lecture at the Centre for Educational Effectiveness and Evaluation, KU Leuven, Belgium.
    • Köhler, C., Hartig, J., & Schmid, C. (2019, May). Deciding Between the Covariance Analytical Approach and the Change-Score Approach in Two Wave Panel Data. Invited guest lecture at the research colloquium of the IQB, Berlin, Germany.
    • Köhler, C., Hartig, J., & Naumann, A. (2019, January). Estimation of Random Group DIF using Two- and Three-Level GLMMs. Invited presentation in the Symposium “Scales comparability in large scale cross‐country assessments” at the 5th Lisbon Economics and Statistics in Education (LESE) meeting, Lisbon, Portugal.
  • last modified Jan 22, 2025