Research Discipline/Bio
My research focuses on psychometric methods such as cognitive diagnosis models, item response theory, and response process modeling.
Educational Background
MA in Education, Seoul National University, 2022
BA in Education, Dept. of Education, Seoul National University, 2020.
Honors/Awards
Doctoral Research Fellowship, Teachers College, Columbia University, 2023-2027
The Provost’s Grant for Conference Presentation & Professional Development, Teachers College, Columbia University, 2024
Research Fellowship for Doctoral Students, Accessible Teaching Learning, and Assessment Systems (ATLAS), 2023
University Scholarships for Academic Excellence, Seoul National University, 2016-2021
Publications/Exhibitions
Oh, H., & Chiu, C. Y. (2025). To Use or Not to Use: Method Selections in Cognitive Diagnosis. Measurement: Interdisciplinary Research and Perspectives, 1–26.
Oh, H., & Chiu, C.-Y. (2025, July). Evaluation of the Effectiveness of Validation Methods on Q-Matrix Misspecifications with Longitudinal Diagnostic Classification Models. Paper presented at the annual International Meeting of the Psychometric Society (IMPS), Minneapolis, MN.
Nájera, P., Sorrel, M. A., Oh, H., and Chiu, C.-Y. (2025, July). Longitudinal Diagnostic Models for Small Sample Size Contexts. Paper presented at XI Conference – European Congress of Methodology, Canary Islands, Spain.
Oh, H., & Chiu, C.-Y. (2025, May). Robustness of Longitudinal Diagnostic Classification Models to Model Misfit and Q-Matrix Misspecifications. Poster presented at Psychology @ TC Student Research Conference, New York, NY.
Oh, H., & Chiu, C.-Y. (2025, April). Robustness of Longitudinal Diagnostic Classification Models to Model Misfit and Q-Matrix Misspecifications. E-Board presented at the annual meeting of the National Council on Measurement in Education (NCME), Denver, CO.
Oh, H., Chiu, C.-Y., & Madison, M. (2024, July). Small Sample Approaches to the Analysis of Longitudinal Data for Cognitive Diagnosis: Evaluation and New Insights. Poster presented at the annual International Meeting of the Psychometric Society (IMPS), Prague, Czech Republic.
Oh, H., Chiu, C.-Y., & Madison, M. (2024, April). Longitudinal CDMs with Small Samples: In contrast to Nonparametric CD Methods. Paper presented at the annual meeting of the National Council on Measurement in Education (NCME), Philadelphia, PA.
Oh, H., & Chiu, C.-Y. (2023, July). Necessity of Model Selections in CD: The Absolute Fit Indices Versus the General Classification Methods. Paper presented at the annual International Meeting of the Psychometric Society (IMPS), College Park, MD.
Last Updated: Jun 3, 2025