Zelma Overview
Zelma is a specialized AI assistant integrated into the Education Data Center (EDC), a platform dedicated to providing clear and timely access to education data. The core of the EDC is the State Assessment Data Repository (SADR), the most comprehensive database of its kind in the United States. This repository contains publicly-available assessment data from all 50 states and the District of Columbia for students in Grades 3-8. The data is meticulously disaggregated by state, district, school, subject, grade level, and various student subgroups (e.g., race/ethnicity, economic status, English learner status).
The primary mission of Zelma and the EDC is to empower researchers, education stakeholders, policymakers, and parents to make evidence-based decisions. It bridges the gap between vast, complex datasets and actionable insights by allowing users to interact with the data through simple, natural language questions.
How to use Zelma
Users can access the wealth of information in the Education Data Center in two primary ways:
- Direct Data Download: For in-depth statistical analysis, users can download complete data files for any state in CSV format. The platform includes a detailed codebook that explains every variable, its source, and its meaning, ensuring researchers have the context they need.
- Explore with Zelma (AI): This is the platform's flagship feature. Instead of sifting through spreadsheets, users can ask Zelma questions in plain English. For example, you could ask, "What were the 8th-grade math proficiency trends for female students in Florida between 2019 and 2024?" or "Compare the ELA performance of economically disadvantaged students across different districts in California." Zelma processes these queries and returns relevant data, trends, and insights directly from the repository.
Core Features of Zelma
- Natural Language Querying: Ask complex questions about education data in plain English, eliminating the need for programming or advanced data science skills.
- Comprehensive Data Repository: Access the State Assessment Data Repository (SADR), the most extensive database of U.S. state assessment data, covering all 50 states and D.C. for grades 3-8.
- Granular Data Disaggregation: Data is broken down by state, district, and school levels, and further disaggregated by subject, grade, and numerous student subgroups (race, gender, economic status, disability, etc.).
- Direct Data & Codebook Downloads: Users can download raw data files in CSV format and access a comprehensive codebook for full transparency and research integrity.
- API Access: Programmatic access is available for researchers and developers who wish to integrate EDC data into their own applications and workflows.
- Data Versioning and Changelogs: The platform maintains clear versioning for its datasets and provides detailed changelogs with each update, ensuring users are aware of the latest additions and modifications.
Use Cases for Zelma
Zelma is designed for a wide range of users focused on education:
- Educational Researchers: Conduct longitudinal studies, analyze the impact of policy changes, and explore achievement gaps by easily accessing and querying years of detailed data.
- Policymakers & Government Agencies: Inform policy decisions with up-to-date, evidence-based insights on student performance at state and district levels.
- School District Administrators: Benchmark their district's performance against others within the state and identify areas for improvement across different student demographics.
- Journalists and Advocates: Report on educational trends and equity issues with reliable, easily accessible data to support their stories.
- Parents and the Public: Gain a clearer understanding of school performance and educational outcomes in their communities.
Advantages of Zelma
The main advantage of Zelma is its ability to democratize access to critical education data. It transforms a complex, fragmented landscape of state-level data into a unified, queryable resource. The AI interface significantly lowers the barrier to entry, allowing non-technical users to perform sophisticated data exploration. Its commitment to transparency, with detailed codebooks and data sources, builds trust and supports rigorous, evidence-based work. The project is a collaborative effort with reputable institutions like Brown University and is supported by major foundations, ensuring its focus remains on public benefit.
Pricing and Plans
Zelma and the entire Education Data Center are free to use. The project is made possible through the generous financial support of the Walton Family Foundation, Brown University, the Michael & Susan Dell Foundation, and other contributors. Users are encouraged to donate to support the ongoing work of maintaining and expanding this valuable public resource.
Traffic
Latest traffic
Status
Monthly traffic trend
- 2025-9: 3.3K
- 2026-1: 18.2K
- 2026-2: 3.2K
- 2026-3: 1.6K
- 2026-4: 3.0K
- 2026-5: 2.2K
Geography
Top 5 countries / regions
- 🇺🇸United States100.0%
Top keywords
| Keyword | Cost per click |
|---|---|
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| virginia released sol eoc reading 2024 | $0.00 |
| what's the average math reader test score for an 8th grader | $0.00 |
| zelma | $0.00 |
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