Yixuan "Coda" Shi

Scholarly

Philosophy, psychology, public affairs. An intellectual obsession with the collective psyche, a care for its well-being.

Tsinghua University

Aug 2026 — Present

Department of Psychology and Cognitive Science

Research Assistant, Center for Cultural Psychology · Beijing

  • Supports the Center's daily research operations: project management, document organisation, meeting and academic-event coordination, and external communications.
  • Contributes to interdisciplinary projects spanning cultural-psychology theory, culturally grounded psychological interventions, depression neuroimaging and multimodal intervention, and applications of artificial intelligence to mental health.
  • Assists with literature review, study-design documentation, ethics materials, participant recruitment, and collection of questionnaire, behavioural, neuroimaging, physiological, and wearable-device data.
  • Supports MRI scanning, TMS intervention, behavioural assessment, data quality control, and preliminary analysis after required training; contributes figures and manuscript material under team supervision.
  • Principal investigator: Prof. Chao-Gan Yan.

Southern Methodist University

Spring 2026 — Present

Department of Psychology

Independent Research — Lead Analyst · Dallas, TX

  • Leads Phase I on the full analytic sample (N = 10,080) and Phase II on a ~1,500 subsample testing Sex × Age invariance: measurement invariance of the PHQ-9 and GAD-7 in a Shanghai tertiary-hospital psychiatric outpatient sample, addressing a gap where Chinese invariance studies typically sit below N = 1,000.
  • Built a reproducible R pipeline in tidyverse, psych, lavaan, semTools, and flextable, following Putnick & Bornstein (2016) and Fischer & Karl (2019) reporting standards; Phase II adds ordinal multi-group CFA with the WLSMV estimator and an MNFA extension.
  • Completed end-to-end data cleaning, sample accounting, Table 1 demographics, and a missingness audit confirming complete PHQ-9/GAD-7 item data; produced pairwise cross-tabulations with Cramér's V and a three-tier data-quality flagging system supporting primary and sensitivity analyses.
  • Manuscript in preparation with Dr. Quanfa He; targeting an APS / APA / SRP poster and a clinical-methodological journal, Fall 2026.

Southern Methodist University

Oct 2025 — Present

Delta Adult Attachment & Personality Development Lab

Research Assistant · Dallas, TX

  • Co-piloted two Sonar studies, coded 500 entries for an ongoing friendship research project, and cleaned 1,500 raw questionnaire entries for a longitudinal volitional personality-change study using SPSS syntax.

Providence City Council

Jan 2025 — May 2025

Brown University Watson Institute

Policy in Action Project Researcher · Providence, RI

  • Conducted comparative inclusionary-zoning research across East Palo Alto, Fairfax County, and further U.S. cases; used HUD and local housing data to produce choropleth and dot-density maps, and contributed to the final difference-in-differences analysis.
  • Co-authored a policy brief on zoning and sustainable parking policy with actionable recommendations, and presented findings to Providence City Council officials.

Education

Brown University

Jun 2024 — Jun 2025

Master of Public Affairs · Providence, RI

Econometrics, probability, data analysis and visualisation, public policy, corporate finance, public administration.

Harvard University

Aug 2024 — Dec 2024

International Business / Trade / Commerce (non-degree) · Cambridge, MA

Cross-registration during the Brown MPA.

University of California, Irvine

Sep 2020 — Dec 2023

Bachelor of Arts in Philosophy · Irvine, CA

Dean's List for all eight quarters. Philosophy of mind, ethics, symbolic logic, general psychology, advanced statistical methods.