The Rafto Prize 2026 is awarded to the Collegiate Body of Guardians of the Atrato River (CCGA) for their courageous fight against environmental destruction and for the protection of human rights in Co...

Community Call #17 in collaboration with IWGIA is about how civil society uses data analysis and machine learning to build peace and defend civic space.

Community Call #17 in collaboration with IWGIA is about how civil society uses data analysis and machine learning to build peace and defend civic space.

In February 2025, the Trump Administration issued sanctions against the International Criminal Court for its investigations into potential war crimes and humanitarian violations by Israel in Gaza. A…

In February 2025, the Trump Administration issued sanctions against the International Criminal Court for its investigations into potential war crimes and humanitarian violations by Israel in Gaza. A f...

New cooperative will provide technical infrastructure for organizations documenting state violence and human rights abuses SAN FRANCISCO — August 4, 2026 — A coalition of human rights, justice, and da...

From time to time, we issue our own scientific reports that focus on the statistical aspects of the data analysis we have done in support of our partners. These reports are non-partisan, and they…

Human Rights Data Analysis Group (HRDAG) We are data scientists for human rights. We are non-partisan and non-profit. We seek opportunities where the debate hinges on a question of fact. Our work…

HRDAG is pleased to announce our newest summer intern and fellow: Corinne Hess joins us as a Human Rights Intern, and Larissa Arreola Moreno joins us as a Statistics and Human Rights Fellow. Corinne…

YouTube video by Meet a Mathematician

This year at HRDAG we re-dedicated ourselves to a shared clarity of purpose, grounded in the Universal Declaration of Human Rights. Our recommitment has been compelled by a dramatic shift in the polit...

Human Rights Data Analysis Group (HRDAG) We are data scientists for human rights. We are non-partisan and non-profit. We seek opportunities where the debate hinges on a question of fact. Our work…

A new study led by LCDS researcher Dr Ursula Gazeley has uncovered the substantial but largely invisible burden of violent deaths during pregnancy and the postpartum period in Mexico, showing how defi...

Structural Zero 10: What is a "structural zero" I’m Maria Gargiulo. I started with HRDAG as an intern in 2018 and I’ve worked with the team as a statistician since 2020. I’m currently earning my…

For years, Asian-American residents of Siskiyou County, in northern California, have alleged that they are being targeted by law enforcement officials through traffic stops and water access…

Introduction Violent deaths during pregnancy and the postpartum period remain an unmet global public health priority. These include deaths from self-inflicted (ie, suicide) and externally perpetrated...

What is a Structural Zero? What do statisticians mean by the term “structural zero”—and why does it matter? In this episode of How to Tell the Truth with Statistics, Rainey Reitman talks with…

YouTube video by Human Rights Data Analysis Group

Structural Zero 10: What is a "structural zero"

Structural Zero 10: What is a "structural zero"

Structural Zero 10: What is a "structural zero"

Structural Zero 10: What is a "structural zero"

Note from the author (June 2020) The largest public demonstrations in a generation are at this moment demanding reform or abolition of the police in the United States.[1] The overwhelming and destabil...

Structural Zero 09: Sampling Bias

This is the story of Efraín Arévalo Ibarra: a teacher, father, and union member who was “disappeared” by the Salvadoran government in November 1977.

Structural Zero 08: What statisticians mean by bias—and why it matters

Por cada persona asesinada o desaparecida, un promedio de 5 familiares cercanos y más de 30 parientes extendidos entran en un estado de duelo.