Liu Liu is a quantitative researcher and data scientist with 13 years of experience specializing in Bayesian multilevel modeling, psychometrics, and survey methodology, with a PhD focus in Measurement & Statistics from the University of Washington. Their work bridges rigorous methodological development—informative priors for variance components, item response theory including DIF, and causal inference—with applied projects in education and credentialing (NCCPA, Curriculum Associates, NCES). Comfortable across R, Python, Mplus, and many domain tools, they routinely tackle both small- and large-scale data challenges, from longitudinal and structural equation models to adaptive assignment algorithms. Beyond academia, Liu contributes to open-source tooling as a full-stack developer (notably adding i18n and UX features to the popular Gitalk comment component), showing a practical software skillset that complements their statistical depth. They are motivated by using quantitative methods to promote equitable educational access and translate complex analyses into actionable policy and practice.
12 years of coding experience
6 years of employment as a software developer
Doctor of Philosophy Measurement & Statistics, Doctor of Philosophy Measurement & Statistics at University of Washington
MA Educational Statistics and Research Methods, MA Educational Statistics and Research Methods at University of Delaware
MS Statistics Measurement Assessment and Research Technology, MS Statistics Measurement Assessment and Research Technology at University of Pennsylvania
Gitalk is a modern comment component based on Github Issue and Preact.
Role in this project:
Full-stack Developer
Contributions:2 reviews, 117 commits, 48 PRs in 3 years 8 months
Contributions summary:Liu contributed significantly to the Gitalk project by implementing internationalization (i18n) support. This involved adding i18n features, modifying the main component, and integrating language support into the comment and styling components. Further commits refactored code, added a preview mode, and added functionality like like buttons.
Contributions:11 commits, 9 pushes, 1 branch in 2 years 7 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.