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• Emeritus / Chair Professors
• Full-Time Faculty
• Office Hour of Full-Time Faculty
• Jointly Appointed Teachers
• Adjunct Faculty
• Administrative Staff

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Chen-Wei Liu

Title

Associate Professor, Leader of Research and Development Division in Research Center for Psychological and Educational Testing.

Areas of Teaching

Item Response Theory, Psychological/Educational Statistics, Categorical Data Analysis, Computerized Adaptive Testing.

Research Expertise

Psychometrics.

Personal Websitehttps://scholar.lib.ntnu.edu.tw/zh/persons/chen-wei-liu

Contact Number(02)7749-3788

Emailcwliu@ntnu.edu.tw

Contact AddressCollege of Education 6th Floor - R608

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• Journal Article
• Conference Paper
• Academic Research Project

Year	Title
2025	Liu, C.-W. (2025). Semi-parametric item response theory with O'Sullivan splines for item responses and response time. Applied Psychological Measurement. (online first)
2025	Liu, C.-W. (2025). Inferring individual attributes using testlet-based visual analogue scaling and Beta copula diagnostic classification models. Journal of Educational and Behavioral Statistics. (in press)
2025	Liu, C.-W. (2025). Bayesian Q matrix estimation of saturated diagnostic classification models using NIMBLE. Journal of Educational and Behavioral Statistics. (in press)
2024	Liu, C.-W. (2024). Multidimensional item response theory models for testlet-based doubly bounded data. Behavior Research Methods, 56(6), 5309-5353. https://doi.org/10.3758/s13428-023-02272-5
2023	Chen, C.-W., & Liu, C.-W.* (2023). Online parameter estimation for student evaluation of teaching. Applied Psychological Measurement, 47(4), 291-311.
2022	Liu, C.-W. (2022). Efficient Metropolis-Hastings Robbins-Monro algorithm for high-dimensional diagnostic classification models. Applied Psychological Measurement, 46(8), 662-674.
2021	Liu, C.-W.*, & Chalmers, R. P. (2021). A note on computing Louis' observed information matrix identity for IRT and cognitive diagnostic models. British Journal of Mathematical and Statistical Psychology, 74(1), 118-138.
2021	Liu, C.-W. (2021). Examining nonnormal latent variable distributions for non-ignorable missing data. Applied Psychological Measurement, 45(3), 159-177.
2020	Liu, C.-W.*, Andersson, B., & Skrondal, A. (2020). A constrained Metropolis-Hastings Robbins-Monro algorithm for Q matrix estimation in DINA models. Psychometrika, 85(2), 322–357.
2019	Liu, C.-W.*, Qiu, X.-L. & Wang, W.-C. (2019). Item response theory modeling for examinee-selected items with rater effect. Applied Psychological Measurement, 43(6), 435-448.
2019	Liu, C.-W.*, & Wang, W.-C. (2019). A general unfolding IRT model for multiple response styles. Applied Psychological Measurement, 43(3), 195-210.
2018	Liu, C.-W., & Chalmers, R. P. (2018). Fitting item response unfolding models to Likert-scale data using mirt in R. PLoS ONE, 13(5), 1-22.
2017	Liu, C.-W.*, & Wang, W.-C. (2017). Non-ignorable missingness item response theory models for choice effects in examinee-selected items. British Journal of Mathematical and Statistical Psychology, 70(3), 499-524.
2017	Liu, C.-W., & Wang, W.-C. (2017). Parameter estimation in Rasch models for examinee-selected items. Journal of Educational Measurement, 54(4), 518-549.
2016	Liu, C.-W., & Wang, W.-C. (2016). Unfolding IRT models for Likert items with a don't know option. Applied Psychological Measurement, 40(7), 517-533.
2013	Wang, W.-C., Liu, C.-W., & Wu, S.-L. (2013). The random-threshold generalized unfolding model and its application of computerized adaptive testing. Applied Psychological Measurement, 37(3), 179-200.
2011	Wang, W.-C., & Liu, C.-W. (2011). Computerized classification testing under the generalized graded unfolding model. Educational and Psychological Measurement, 71(1), 114-128.

Year	Title
	Liu, C.-W., Wang, W.-C., & Chen, S.-Y. (2008, August). Efficiency of three content-balancing methods in computerized adaptive testing. Paper presented at the annual meeting of Pacific Rim Objective Measurement Symposium. Tokyo, Japan.
	Liu, C.-W., & Wang, W.-C. (2009, July). The application of the random-threshold generalized graded unfolding model to computerized adaptive testing and computerized classification testing. Paper presented at the annual meeting of International Meeting of the Psychometric Society, Cambridge.
	Liu, C.-W., & Wang, W.-C. (2010, April). Computerized classification testing under the generalized graded unfolding model. Paper presented at the annual meeting of National Council on Measurement in Education. Denver, USA.
	Liu, C.-W., & Wang, W.-C. (2011, July). The multilevel generalized graded unfolding model. Paper presented at the annual meeting of International Meeting of the Psychometric Society, Hong Kong.
	Liu, C.-W., & Wang, W.-C. (2011, Dec). The facets IRT unfolding model. Paper presented at the annual meeting of TERA International Conference on Education, Taiwan.
	Liu, C.-W., & Wang, W.-C. (2012, April). Modeling nonignorable missing data in unfolding IRT models. Paper presented at the annual meeting of National Council on Measurement in Education, USA.
	Liu, C.-W., & Wang, W.-C. (2013, Dec). A new class of IRT models for examinee-selected items. Paper presented at the annual meeting of TERA International Conference on Education & Pacific Rim Objective Measurement Society, Taiwan.
	Liu, C.-W., & Wang, W.-C. (2013, April). Spectral clustering for dimensionality assessment. Paper presented at the annual meeting of National Council on Measurement in Education, USA.
	Liu, C.-W., & Wang, W.-C. (2014, April). A class of unfolding models for pairwise-comparison and ranking data. Paper presented at the annual meeting of National Council on Measurement in Education, Philadelphia, USA.
	Liu, C.-W., & Wang, W.-C. (2014, April). The nonignorable missing examinee-selected item Model. Paper presented at the annual meeting of American Educational Research Association, Philadelphia, USA.
	Wang, W.-C., & Liu, C.-W. (2014). Modeling Selection Effects in Examinee-Selected Items. Paper presented at the International Meeting of the Psychometric Society, Wisconsin, USA.
	Liu, C.-W., & Wang, W.-C. (2015, July). A Hierarchical IRT Approach to Item Nonresponses of Likert-type Scales. Paper presented at the International Meeting of the Psychometric Society, Beijing, China.
	Liu, C.-W., & Wang, W.-C. (2015, August). An empirical analysis of choice effects in examinee-selected items. Paper presented at the annual meeting of Pacific Rim Objective Measurement Symposium. Fukuoka, Japan.
	Liu, C.-W., & Wang, W.-C. (2017, October). A General Unfolding IRT Model for Multiple Response Styles. Paper presented at the 56th Annual Convention of Taiwanese Psychological Association and International Psychological Conference. Chia-Yi, Taiwan.
	Liu, C.-W., Lai, C.-M., Cheng, Y.-L., & Leung, S.-M. (2018, August). Career Decision-Making Difficulties Questionnaire: Confirmatory Factor and Latent Growth Analyses. Paper presented at the Annual Convention of American Psychological Association. San Francisco, USA.
	Chen, C.-W., Liu, C.-W., M.-M. Chiu, & Wang, W.-C. (2019, April). Computerized Adaptive Testing Algorithms (Marginal, Joint, Iterative) for Student Evaluation of Teaching. Paper presented at the annual meeting of National Council on Measurement in Education, Toronto, Canada.
	Liu, C.-W., J.-H., Yang, & Leung, S.-M. (2019, April). Validating Career Adapt-Abilities Scale–Hong Kong Form via Multidimensional Item Response Theory: A Big Data Example. Paper presented at the annual meeting of American Educational Research Association, Toronto, Canada.
	Liu, C.-W., Y. L. Cheng, & Leung, S.-M. (2019, May). Analysis of School Gender Differences on Career Development Measures. Paper presented at the annual meeting of Asia Pacific Career Development Association, Hanoi, Vietnam.

Year	Project Title	Role	Period	Commissioning Organization
2025	探索性隱馬可夫診斷分類測量對於學生的認知學習軌跡之評估	主持人	2024/08/01 ~ 2025/07/31	國科會
2024	使用視覺類比量尺測量患者自述結果—單極潛在量尺、膨脹零反應、非常態潛在量尺與縱貫性作答反應之議題	主持人	2023/08/01 ~ 2024/07/31	國科會
2023	發展試題反應理論模型於視覺類比量尺—評分、自比、反應時間、反應型態、和診斷分類之議題	主持人	2022/08/01 ~ 2023/07/31	國科會
2022	發展試題反應理論模型於視覺類比量尺—評分、自比、反應時間、反應型態、和診斷分類之議題	主持人	2021/08/01 ~ 2022/07/31	國科會
2021	職業興趣測驗與認知分類模型對於青少年職業興趣與能力評估的分析與應用	主持人	2020/08/01 ~ 2021/07/31	國科會