Erika leads Catalyze with extensive experience in research and evaluation for a broad range of public and nonprofit organizations. Her expertise includes policy change, collective impact, systems change, and interagency collaboration for a wide range of public and non-profit programs serving children and families. Erika has presented and published articles for the American Evaluation Association and the United Kingdom Evaluation Society on topics such as the use of qualitative methods to measure interim policy change and on the risks of favoring randomized controlled trials above other evaluation methods. Erika has taught Program Evaluation and Public Health Ethics at UC Davis and has published articles on homelessness. Erika has also served as a board member and volunteer for a nonprofit organization providing support for at-risk mothers.