One of the core principles of our project is transparency. As a matter of course, all of the data we use in our statistical modeling comes from reputable public sources. For an overview of where our data comes from, click here.
We also post all of the code and data we use to generate these risk assessments on a public web site so that other researchers can replicate our work and help us think about how to do it even better. To view our data on Github, click here.