# PhD Demographics — AI Agent Guide

> This site contains thesis and dissertation data from 107 US research universities,
> enriched with government data from IPEDS, NSF, DOL, and DHS.

## Data Catalog
The full machine-readable catalog is at: https://phd-demographics.andy-barr.com/catalog.json

## Data Format
Each university's data is a JSON file at /data/stem/{key}.json or /data/nonstem/{key}.json.
Records are arrays: [department, year, author_name, origin_class, confidence, title, url, degree_type]

## Available Endpoints
- /catalog.json — Full data catalog with all datasets, schemas, and metadata
- /data/stem/{key}.json — Per-university STEM thesis records (107 universities)
- /data/nonstem/{key}.json — Per-university non-STEM thesis records
- /data/taxonomy.json — Department name taxonomy (44 canonical categories)
- /data/stem/_search.json — Search index (name, department, year for all records)
- /overview.html — National statistics dashboard
- /data_sources.html — Methodology and government data source documentation

## Version
- Data version: 1.0.0
- Last updated: 2026-03-31
- Universities: 107
- Total records: 471,171 (334,788 STEM + 136,383 non-STEM)

## Government Data Sources
All demographic and enrollment data comes from US federal agencies:
- IPEDS (NCES) — Completions, enrollment, finance, tuition, faculty
- NSF NCSES — SED, GSS, SDR, HERD
- DOL ETA — H-1B visa disclosures
- DHS ICE — SEVP foreign student data
- USASpending.gov — Federal research grants

## Citation
PhD Demographics Project. (2026). Thesis & Dissertation Lists — High NRA Universities.
https://phd-demographics.andy-barr.com/