“Knowing the magnitude and the consistency of the disparity can help us learn whether what we’re doing is working. If there are policy changes that are widespread, you know we can look at pr- and post and see if those policy changes are changing the magnitude of things that we’re seeing in a positive direction, said Reisner. "It kind of gives a metric gives for what we want to do, which is reduce the disparities. So that’s a starting point for that work,” he added.