Student Profiles
Zixi Chen
Email: [email protected]
Research interests: Latent Class Analysis
Mentor: Alfonso Martinez
.jpeg)
Xinyue (Sam) Deng
(she/her/hers)
Email: [email protected]
Research interests: quantitative psychology, structural equation modeling, item response theory, game-based assessments, machine learning, artificial intelligence
Mentor: Heining Cham
Professional links:
Google Scholar | LinkedIn
Recent accomplishments:
Deng, X., & Cham, H. (2024, April). Evaluating game-based assessments’ validities using machine learning [Poster presentation]. National Council on Measurement in Education (NCME) conference 2024, Philadelphia, PA, United States.
Deng, X. (2024, July). Are large language models fatalists? [Poster presentation]. Summer Institute in Computational Social Science (SICSS) workshop 2024. Beijing, China.
Hobbies: I like snowboarding, playing tennis, going to concerts
Cleo (Cian-Ya) Lan
(she/her/hers)
Email: [email protected]
Research Interests: Item Response Theory, Psychometric Evaluation of Clinical Instruments
Mentor: Leah Feuerstahler
Professional Contact: LinkedIn
Recent Accomplishments:
Lee, S. C., Huang, C. Y., Huang, T. Y., Hsu, W. C., Lan, C. Y., & Chen, K. L. (2026). Conceptualizing Functioning Levels of Theory of Mind Ability and Performance in Preschool to School-Aged Autistic and Neurotypical Children. Autism research : official journal of the International Society for Autism Research, 19(7), e70264. https://doi.org/10.1002/aur.70264
Lan, C.-Y., Lee, S.-C., & Hsieh, C.-L. (2025, April 19). Exploring subjective confidence in independent living among individuals with schizophrenia [Poster presentation]. 25th Annual Conference of Occupational Therapy, Taipei, Taiwan.
Hobbies: knitting & bouldering
Opalhawaye Agatha Nyamulani
(she/her/hers)
Email: [email protected]
Research interests: Item Response Theory, Structural Equation Modeling, Bayesian Methods, Longitudinal Latent Modeling, Diagnostic Classification Modeling
Mentor: Leah Feuerstahler
Professional Contact: LinkedIn
Recent Accomplishments:
Nyamulani, O., Martinez, A. & Kehinde, O. (2026, June 23). A Comparative Assessment of Mplus and the TDCM Package for Estimating Longitudinal Diagnostic Classification Models. [Poster presentation]. Modern Methods Modeling (M3) conference 2026, New York City, NYC, United States.
Nyamulani, O. & Feuerstahler, F. (2026, April 10). Parameter Recovery in Bayesian Testlet Models [Poster presentation]. National Council on Measurement in Education (NCME) conference 2026, Los Angeles, LA, United States.
2026-2027 International Peace Scholarship from PEO.
2026 Alpha Sigma Nu Life Time membership from The Honor Society of Jesuits Universitities and Colleges for Academic Excellence and Service.
2025-2026 Anne Anastasi Graduate Student Distinguished Fellowship from GSAS; 2024-2025 International Peace Scholarship from PEO
Hobbies: Exploring new places, making friends
.jpg)
Fabio Setti
(he/him)
Email: [email protected]
Research interests: Bayesian methods, item response theory, latent variables modeling
Mentor: Leah Feuerstahler
Professional links:
https://fabio-setti.netlify.app
https://www.linkedin.com/in/fabio-setti-0a0a85236
Recent accomplishments:
Setti, F., & Feuerstahler, L. M. (2024, July 16-19). Bayesian model averaging of asymmetric IRT models in small samples. In J. Verkuilen (chair), Asymmetric item response models. [Symposium]. Annual International Meeting of Psychometric Society, Prague, CZ.
Setti, F., & Kahn, J. H. (2024). Evaluating how facets of openness to experience predict music preference. Musicae Scientiae, 28(1), 143–158. https://doi.org/10.1177/10298649231174751
Tyler Sterle
(he/him)
Email: [email protected]
Research interests: Longitudinal Modeling, Affective Modeling
Mentor: Betsy McCoach
Professional Contact: LinkedIn
Hobbies: Bouldering