Xingyao (Doria) Xiao, Ph.D.
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Xingyao (Doria) Xiao, Ph.D.

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Welcome! I am a Postdoctoral Scholar at the Stanford University Graduate School of Education, where I work on the LEVANTE Project with Ben Domingue, Mike Frank, and Nilam Ram. I develop statistical methods that make educational and psychological measurement more reliable, valid, and fair — particularly as AI enters the assessment pipeline.

My research bridges methodological innovation with practical assessment design and large-scale data analysis. I specialize in:

  • Statistical Psychometrics — multidimensional IRT (mIRT) and Many-Facet Rasch Models (MFRM)
  • Bayesian Modeling — longitudinal and latent variable models, including Growth Mixture Modeling (GMM)
  • AI-Integrated Measurement — evaluating ML-based scoring and the integration of LLMs into educational assessment

Recent Highlights

  • Preprint (June 2026) — Good Kitty, Bad Bank? Rescoring Miscalibrated CATs Improves Accuracy (with Domingue, Ram, & Frank) · PsyArXiv
  • Preprint (May 2026) — The Safety Valve: A Mixture IRT Approach to Modeling Guessing Behavior (with Ulitzsch, Zhang, Frank, & Domingue) · PsyArXiv · R package mixirt
  • Preprint (2026) — A Parameterization-Invariant DIC (with Rabe-Hesketh) · arXiv:2605.27844
  • Publication (2026) — What Do I Know about AI beyond Everyday Knowledge? in ACM Transactions on Computing Education
  • Editorial Service — Editorial Board Member, Measurement: Interdisciplinary Research and Perspectives

Full publication list →

Recent Posts

New Publication: Reliability of Hybrid Human-ML Scoring Systems

I am pleased to share that our new paper, “Revisiting reliability with human and machine learning raters under scoring design and rater configuration in the many-facet Rasch…
Feb 1, 2026

New Publication: Trajectories of Depressive Symptoms During COVID-19

I’m very excited to share that our article,
“Trajectories of Depressive Symptom Among College Students in China During the COVID-19 Pandemic: Association With Suicidal…
Sep 15, 2025

BEAR Seminar Talk: When Growth Mixture Models Break

Sep 10, 2025
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Welcome! I am a Postdoctoral Scholar at the **Stanford University** Graduate School of Education, where I work on the [**LEVANTE Project**](https://levante-network.org/) with Ben Domingue, Mike Frank, and Nilam Ram. I develop statistical methods that make educational and psychological measurement more reliable, valid, and fair — particularly as AI enters the assessment pipeline.

<!-- After August 2026, replace the paragraph above with the ACER version, e.g.:
Research Fellow at the Australian Council for Educational Research (ACER), Melbourne. -->

My research bridges methodological innovation with practical assessment design and large-scale data analysis. I specialize in:

- **Statistical Psychometrics** — multidimensional IRT (mIRT) and Many-Facet Rasch Models (MFRM)
- **Bayesian Modeling** — longitudinal and latent variable models, including Growth Mixture Modeling (GMM)
- **AI-Integrated Measurement** — evaluating ML-based scoring and the integration of LLMs into educational assessment

## Recent Highlights

- **Preprint (June 2026)** — *Good Kitty, Bad Bank? Rescoring Miscalibrated CATs Improves Accuracy* (with Domingue, Ram, & Frank) · [PsyArXiv](https://osf.io/preprints/psyarxiv/gk368_v1)
- **Preprint (May 2026)** — *The Safety Valve: A Mixture IRT Approach to Modeling Guessing Behavior* (with Ulitzsch, Zhang, Frank, & Domingue) · [PsyArXiv](https://osf.io/preprints/psyarxiv/7gtwd_v1) · R package [mixirt](https://github.com/DoriaXiao/mixirt)
- **Preprint (2026)** — *A Parameterization-Invariant DIC* (with Rabe-Hesketh) · [arXiv:2605.27844](https://arxiv.org/abs/2605.27844)
- **Publication (2026)** — *What Do I Know about AI beyond Everyday Knowledge?* in *ACM Transactions on Computing Education*
- **Editorial Service** — Editorial Board Member, *Measurement: Interdisciplinary Research and Perspectives*

[Full publication list →](publications.qmd)

## Recent Posts

::: {#recent-posts}
:::

[All posts →](blog.qmd)

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