Judith L. Perrigo

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Judith (Judy) Perrigo is an Assistant Professor in the Department of Social Welfare at the UCLA Luskin School of Public Affairs and serves as the Research Director for the Data Informed Futures (DIF) project at the UCLA Center for Healthier Children, Families, and Communities. Drawing on her clinical background supporting children and families in Los Angeles County, her scholarship and teaching center on prevention and early intervention (PEI) strategies to address structural inequities, particularly those affecting early childhood.

Dr. Perrigo’s research advances holistic wellbeing for children from birth to age five, with a focus on economic security, early learning environments, and health disparities. Her work aims to identify both protective and risk factors that shape developmental trajectories, applying an equity-centered PEI framework and leveraging qualitative, quantitative, and mixed-methods approaches tailored to each study’s goals.

Her current projects include studies using the Early Development Instrument (EDI) to track population-level trends in developmental health among kindergarteners, as well as multi-year randomized controlled trials examining the impact of unconditional cash transfers on early childhood outcomes. A key aspect of her work is ensuring that research findings are strengths-based, culturally responsive, and accessible to diverse audiences. Support for her work comes from the Conrad N. Hilton Foundation, Society for Research in Child Development, First 5 Orange County, the Council on Social Work Education, and Los Angeles County.

Selected publications:

Perrigo, J. L., Morales, J., Jackson, N., Janus, M., Stanley, L., Wong, M., & Halfon, N. (2025). COVID-19 pandemic and the developmental health of kindergarteners. JAMA Pediatrics, 179(5), 550-558.

Perrigo, J. L., Molina, A. P., López, O., Traube, D., & Palinkas, L. A. (2024). The deinstitutionalization of children and adolescents in El Salvador’s child protection system. Child Abuse & Neglect, 147, 106601.

Aguilar, E., Perrigo, J. L., Pereira, N., Russ, S. A., Bader, J. L., & Halfon, N. (2024). Unveiling early childhood health inequities by age five through the National Neighborhood Equity Index and the Early Development Instrument. SSM-Population Health, 25, 101553.

Perrigo, J. L., Stanley, L., Mixson, L. S., Espinosa, L., Morales, J., Beck, C., & Halfon, N. (2024). Examining holistic developmental strengths and needs of multilingual kindergartners using the Early Development Instrument. International Journal of Educational Research Open, 6, 100315.

Perrigo, J. L., Block, E. P., Aguilar, E., Beck, C., & Halfon, N. (2023). Income is not an equalizer: Health development inequities by ethnoracial backgrounds in California kindergartners. BMC Public Health, 23(1), 2474.

Perrigo, J. L., Samek, A., & Hurlburt, M. (2022). Minority and low-SES families’ experiences during the early phases of the COVID-19 pandemic crisis: A qualitative study. Children and Youth Services Review, 140, 106594.

Kirsten Schwarz

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Kirsten Schwarz is an urban ecologist working at the interface of environment, equity, and health. Her research focuses on environmental hazards and amenities in cities and how their distribution impacts minoritized communities. Her work on lead contaminated soils documents how biogeophysical and social variables relate to the spatial patterning of soil lead. Her research on urban tree canopy has revealed large scale patterns related to income and tree canopy as well as historical legacies that impact this relationship. Most recently, Dr. Schwarz led an interdisciplinary team working on a community-engaged green infrastructure design that integrated participatory design and place-based solutions to realizing desired ecosystem services.

Her expertise in science communication and engaging communities in the co-production of science was recognized by the American Association for the Advancement of Science (AAAS) naming her a Fellow in the Leshner Leadership Institute in the Center for Public Engagement with Science and Technology. Dr. Schwarz’s research has been funded by the National Science Foundation, AAAS, and the University of California Agriculture and Natural Resources.

Dr. Schwarz has a BA in Human Ecology from College of the Atlantic and a Ph.D. in Ecology from Rutgers University. Prior to joining UCLA, she was an Associate Professor of Environmental Science at Northern Kentucky University where she directed their Ecological Stewardship Institute.

Selected Publications:

Schwarz, K., A. Berland, and D.L. Herrmann. 2018. Green, but not just: Rethinking environmental justice outcomes in shrinking cities. Sustainable Cities and Society 41:816-821.

Ossola, A., L.A. Schifman, D.L. Herrmann, A.S. Garmestani, K. Schwarz, and M.E. Hopton. 2018. The provision of urban ecosystem services throughout the private-social-public domain: a conceptual framework. Cities and the Environment 11(1): Article 5.

Herrmann, D.L., W-C Chuang, K. Schwarz, T.M. Bowles, A.S. Garmestani, W.D. Shuster, T. Eason, M.E. Hopton, C.R. Allen. 2018. Agroecology for the shrinking city. Sustainability 10(3):675.

Cutts, B.B., J.K. London, S. Meiners, K. Schwarz, and M.L. Cadenasso. 2017. Moving dirt: Soil, lead and the unstable politics of urban gardening. Local Environment 22(8):998-1018.

London, J.K., K. Schwarz, M.L. Cadenasso, B.B. Cutts, C. Mason, J. Lim, K. Valenzuela-Garcia and H. Smith. 2017. Weaving community-university research and action partnerships for environmental justice. Action Research 16(2):173-189.

Schwarz, K., R.V. Pouyat, and I. Yesilonis. 2016. Legacies of lead in charm city’s soil: Lessons from the Baltimore Ecosystem Study. International Journal of Environmental Research and Public Health 13(2):209.

Herrmann, D.L., K. Schwarz, W.D. Shuster, A. Berland, B.C. Chaffin, A.S. Garmestani, and M.E. Hopton. 2016. Ecology for the shrinking city. BioScience 66(11):965-973.

Schwarz, K., B.B. Cutts, J.K. London, and M.L. Cadenasso. 2016. Growing gardens in shrinking cities: A solution to the soil lead problem? Sustainability 8(2):141.

Cutts, B.B., D. Fang, K. Hornik, J.K. London, K. Schwarz and M.L. Cadenasso. 2016. Media frames and shifting places of environmental (in)justice: a qualitative historical geographic information system method. Environmental Justice 9(1):23-28.

Berland, A., K. Schwarz, D. L. Herrmann, M.E. Hopton. 2015. How environmental justice patterns are shaped by place: terrain and tree canopy in Cincinnati, Ohio, USA. Cities and the Environment 8(1):Article 1.

Schwarz, K., M. Fragkias, C.G. Boone, W. Zhou, M. McHale, J.M. Grove, J. O’Neil-Dunne, J.P. McFadden, G.L. Buckley, D. Childers, L. Ogden, S. Pincetl, D. Pataki, A. Whitmer, and M.L. Cadenasso. 2015. Trees grow on money: urban tree canopy cover and environmental justice. PLoS ONE 10(4).

Zhou, W., M.L. Cadenasso, K. Schwarz, and S.T.A. Pickett. 2014. Quantifying spatial heterogeneity in urban landscapes: integrating visual interpretation and object-based classification. Remote Sensing 6(4):3369-3386.

Schwarz, K., K.C. Weathers, S.T.A. Pickett, R.G. Lathrop, R.V. Pouyat, and M.L. Cadenasso. 2013. A comparison of three empirically based, spatially explicit predictive models of residential soil Pb concentrations in Baltimore, Maryland USA: understanding the variability within cities. Environmental Geochemistry and Health 35(4):495-510.

Schwarz, K., S.T.A. Pickett, R.G. Lathrop, K.C. Weathers, R.V. Pouyat, and M.L. Cadenasso.  2012. The effects of the urban built environment on the spatial distribution of lead in residential soils. Environmental Pollution 163:32-39.

Osmond, D.L., N.M. Nadkarni, C.T. Driscoll, E. Andrews, A.J. Gold, S.R. Broussard Allred, A.R. Berkowitz, M.W. Klemens, T.L. Loecke, M.A. McGarry, K. Schwarz, M.L. Washington and P.M. Groffman. 2010. The role of interface organizations in science communication and understanding. Frontiers in Ecology and the Environment 8(6):306-313.

Boone, C.G., M.L. Cadenasso, J.M. Grove, K. Schwarz, and G.L. Buckley. 2010. Landscape, vegetation characteristics, and group identity in an urban and suburban watershed: why the 60s matter. Urban Ecosystems 13(3):255-271.

Zhou, W., K. Schwarz, and M.L. Cadenasso. 2010. Mapping urban landscape heterogeneity: agreement between visual interpretation and digital classification approaches. Landscape Ecology 25(1):53-67.

Cadenasso, M.L., S.T.A. Pickett, and K. Schwarz. 2007. Spatial heterogeneity in urban ecosystems: reconceptualizing land cover and a framework for classification. Frontiers in Ecology and the Environment 5(2):80-88.

Grove, J.M., M.L. Cadenasso, W.R. Burch, Jr., S.T.A. Pickett, K.Schwarz, J. O’Neil-Dunne, M. Wilson, A. Troy, and C.Boone. 2006. Data and methods comparing social structure and vegetation structure of urban neighborhoods in Baltimore, Maryland. Society and Natural Resources 19:117-136.

Mark S. Kaplan

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Mark S. Kaplan, Dr.P.H., is a professor of Social Welfare at the UCLA Luskin School of Public Affairs and is a faculty affiliate at the California Center for Population Research. He received his doctorate in public health from the University of California, Berkeley, and holds master’s degrees in social work and public health with postdoctoral training in preventive medicine at the University of Southern California. His research, funded by the National Institutes of Health and private foundations, has focused on using population-wide data to understand suicide risk factors among veterans, seniors, and other vulnerable populations. His other research interests include the social determinants of health and factors associated with thriving in older adulthood.
Dr. Kaplan is the recipient of a Distinguished Investigator Award from the American Foundation for Suicide Prevention. He has contributed to state and federal suicide prevention initiatives. Dr. Kaplan testified before the Senate Special Committee on Aging at its hearing on veterans’ health and was a member of the Expert Panel on the VA Blue Ribbon Work Group on Suicide Prevention in the Veteran Population. Notably, he serves as a scientific advisor to the American Foundation for Suicide Prevention and on the Board of Scientific Counselors for the National Center for Injury Prevention and Control, a Centers for Disease Control and Prevention branch.
Dr. Kaplan recently served as principal investigator on two National Institute on Alcohol Abuse and Alcoholism funded projects: “Acute alcohol use and suicide” and “Economic contraction and alcohol-associated suicides: A multi-level analysis.” He has authored more than 100 peer-reviewed papers, many published in high-impact journals. He co-edited the recent special issue of Health and Social Work on gun violence. Dr. Kaplan, a four-time Fulbright awardee, recently received an award from the Fulbright Specialist Program to help faculty at the Universidad Carlos III de Madrid maximize the global impact of their research.

Selected Publications

Kaplan, M.S., Mueller-Williams, A.C., Goldman-Mellor, S., & Sakai-Bizmark, R. (2022). Changing Trends in Suicide Mortality and Firearm Involvement Among Black Young Adults in the United States, 1999-2019. Archives of Suicide Research, 1-6.

Fowler, K.A., Kaplan, M.S., Stone, D., Zhou, H., Stevens, M., & Simon, T. (2022). Suicide among males across the lifespan: An analysis of differences by known mental health status. American Journal of Preventive Medicine. https://doi.org/10.106/j.amepre.2022.02.021

Kaplan, M.S., McFarland, B.H., Huguet, N., Conner, K., Caetano, R., Giesbrecht, N., Nolte, N. (2013). Acute Alcohol Intoxication and Suicide: A Gender-Stratified Analysis of the National Violent Death Reporting System. Injury Prevention, 19, 38-43.

Kaplan, M. S., Huguet, N., Orpana, H., Feeny, D., McFarland, B. H., & Ross, N. (2008). Prevalence and factors associated with thriving in older adulthood: a 10-year population-based study. The Journals of Gerontology Series A: Biological Sciences and Medical Sciences, 63(10), 1097-1104.

Kaplan, M.S., Huguet, N., McFarland, B.H., & Newsom, J.T. (2007). Suicide Among Male Veterans: A Prospective Population-based Study. Journal of Epidemiology and Community Health, 61, 619-624.

Richard Joseph Jackson

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Richard Joseph Jackson is a Professor Emeritus at the Fielding School of Public Health at the University of California, Los Angeles. A pediatrician, he has served in many leadership positions with the California Health Department, including the highest as the State Health Officer.

For nine years he was Director of the CDC’s National Center for Environmental Health and received the Presidential Distinguished Service award.  In October, 2011 he was elected to the Institute of Medicine of the National Academy of Sciences.

Jackson was instrumental in establishing the California Birth Defects Monitoring Program and in the creation of state and national laws to reduce risks from pesticides, especially to farm workers and to children. While at CDC he established major environmental public health programs and instituted the federal effort to “biomonitor” chemical levels in the US population.  He has received its Hero Award from the Breast Cancer Fund, Lifetime Achievement Awards from the Public Health Law Association and the New Partners for Smart Growth, the John Heinz Award for national leadership in the Environment, and the Sedgwick Medal, the highest award of the American Public Health Association. In 2015 he received the Henry Hope Reed Award for his contributions to the field of Architecture.

Dick Jackson lectures and speaks on many issues, particularly those related to built environment and health. He has co-authored the books: Urban Sprawl and Public Health, Making Healthy Places, and Designing Healthy Communities for which he hosted a four hour PBS series. He has served on many environmental and health boards, as well as the Board of Directors of the American Institute of Architects. He is an elected honorary member of the American Society of Landscape Architects as well as the American Institute of Architects. Richard Jackson is married to Joan Guilford Jackson; they have three grown children and two grandchildren.