A new study from the University of California San Francisco is the largest study of homelessness in the U.S. in several decades. The California Statewide Study of People Experiencing Homelessness includes 3,200 administered questionnaires and 365 in-depth interviews with adults experiencing homelessness in urban, rural, and suburban areas. We talk to Margot Kushel, principal investigator on the study, about what researchers learned and how the data might be relevant outside of California.