Hans Friedrich Koehn, Associate Professor

20062019
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Research Output 2006 2019

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Conference contribution
2019

Additive Trees for Fitting Three-Way (Multiple Source) Proximity Data

Koehn, H. F. & Kern, J. L., Jan 1 2019, Quantitative Psychology - 83rd Annual Meeting of the Psychometric Society, 2018. Wiberg, M., Culpepper, S., Janssen, R., González, J. & Molenaar, D. (eds.). Springer New York LLC, p. 403-413 11 p. (Springer Proceedings in Mathematics and Statistics; vol. 265).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Proximity
Penalty
Square Functions
Individual Differences
Projection Algorithm
2018

Identifiability of the latent attribute space and conditions of Q-matrix completeness for attribute hierarchy models

Koehn, H. F. & Chiu, C. Y., Jan 1 2018, Quantitative Psychology - The 82nd Annual Meeting of the Psychometric Society, Zurich, Switzerland, 2017. Gonzalez, J., Janssen, R., Wiberg, M., Molenaar, D. & Culpepper, S. (eds.). Springer New York LLC, p. 363-375 13 p. (Springer Proceedings in Mathematics and Statistics; vol. 233).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Q-matrix
Identifiability
Completeness
Attribute
Model
2017

Parameter constraints of the logit form of the reduced RUM

Koehn, H. F., Jan 1 2017, Quantitative Psychology - 81st Annual Meeting of the Psychometric Society, 2016. Wang, W-C., Wiberg, M., Culpepper, S. A., Douglas, J. A. & van der Ark, L. A. (eds.). Springer New York LLC, p. 207-213 7 p. (Springer Proceedings in Mathematics and Statistics; vol. 196).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Logit
Latent Class Analysis
Logit Model
Expectation-maximization Algorithm
Expectation Maximization
2016

Conditions of completeness of the Q-matrix of tests for cognitive diagnosis

Koehn, H. F. & Chiu, C. Y., Jan 1 2016, Quantitative Psychology Research - The 80th Annual Meeting of the Psychometric Society. Wang, W-C., Douglas, J. A., Wiberg, M., van der Ark, L. A. & Bolt, D. M. (eds.). Springer New York LLC, p. 255-264 10 p. (Springer Proceedings in Mathematics and Statistics; vol. 167).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Q-matrix
Completeness
Diagnostic Tests
Complications
Diagnostics
2015

Exploring joint maximum likelihood estimation for cognitive diagnosis models

Chiu, C. Y., Koehn, H. F., Zheng, Y. & Henson, R., Jan 1 2015, Quantitative Psychology Research - The 79th Annual Meeting of the Psychometric Society, 2014. van der Ark, L. A., Wang, W-C., Douglas, J. A., Bolt, D. M. & Chow, S-M. (eds.). Springer New York LLC, p. 263-277 15 p. (Springer Proceedings in Mathematics and Statistics; vol. 140).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Maximum Likelihood Estimation
Expectation Maximization
Markov Chain Monte Carlo
CPU Time
Estimation Algorithms
2013

The comparison of two input statistics for heuristic cognitive diagnosis

Koehn, H. F., Chiu, C. Y. & Brusco, M. J., Jan 1 2013, New Developments in Quantitative Psychology - Presentations from the 77th Annual Psychometric Society Meeting. van der Ark, L. A., Millsap, R. E., Bolt, D. M. & Woods, C. M. (eds.). Springer New York LLC, p. 335-343 9 p. (Springer Proceedings in Mathematics and Statistics; vol. 66).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Attribute
Heuristics
Statistics
Performance Test
Nonparametric Model