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Andrew Clarkwest has more than 18 years of experience in workforce policy and evaluation design. He has held lead management and technical roles in many quantitative and mixed-methods studies, including multi-site random assignment evaluations, quasi-experimental impact evaluations, and descriptive studies. He develops evidence to meet the practical needs of program and policy audiences and makes complex research accessible. He has translated research insights through systematic evidence reviews, technical assistance, and easy-to-consume dissemination products.

Didar Ali Didar is technical advisor for monitoring, evaluation, research, and learning (MERL) in Abt’s International Technical Practice (ITP). He has more than 10 years of experience in MERL, project design, and management in the areas of agriculture, food security, economic inclusion, civil society, governance, health, and education. He also has experience in women’s rights advocacy, including designing and implementing advocacy plans and organizing national and international events.

Dr. Kerry Hofer has almost 20 years of experience conducting rigorous research in early childhood settings. Dr. Hofer has in-depth knowledge of large-scale childcare programs, including public state-run prekindergarten programs and Head Start/Early Head Start, as well as more informal care settings.  She has worked with early educational programs and staff across the country.  Dr. Hofer has been a key member on several large-scale projects funded by organizations such as the U.S. Department of Education and the National Institutes of Health, primarily focusing on analytic techniques with quantitative data. The majority of her research involves rigorous quantitative evaluations of early educational programs and practices targeted at children from impoverished families, focusing on program impact and model delivery.

Mariandrea Chamorro has 20 years of experience managing international development programs. She has provided oversight for the high-quality and compliant execution of large flagship USAID programs while contributing to business development. Chamorro’s areas of expertise include prevention of vector-borne diseases, infectious diseases, maternal and child health, and health systems strengthening. Her clients have included the U.S. Agency for International Development (USAID), the Australian Department of Foreign Affairs and Trade (DFAT), and the UK’s Foreign Commonwealth & Development Office (FCDO). 

David Kaz, a principal associate in Abt’s Social and Economic Policy Division, has nearly 20 years of experience providing technical assistance, training, research, and policy analysis. He has worked on a wide range of programs and policies that affect low-income populations. He has directed, designed, and conducted both large- and small-scale, multi-faceted technical assistance projects for federal and state agencies and other clients and stakeholders. Clients have included the U.S. Department of Agriculture (USDA) Food and Nutrition Service, Washington State’s Department of Social and Health Services, King County, and the City of Seattle. He has worked on workforce legislation with members of Congress.

Mubita Lifwatila has more than 20 years of experience designing, implementing, and managing health and education projects in Southern, East, and West Africa. He has provided technical assistance to national malaria programs to institutionalize improved surveillance systems, data analytics using DHIS2, health information systems, epidemic detection, and rapid response capacities. He also has helped strengthen government systems for education service delivery and implementing strategies for mobilizing community support for education initiatives.

Barbara Goodson is a nationally recognized expert in research and policy on families and young children. She has more than 40 years of experience designing and conducting large, multi-site implementation and impact studies examining interventions for low-income and language minority children and families. Goodson is an expert on research methodology and measuring ECE environmental quality and fidelity of implementation of educational interventions. She specializes in the evaluation of pre-grade 12 interventions and early learning programs, designing logic models and conducting program improvement research to ensure successful implementations.

Raquel González, Ph.D., has over 20 years of experience conducting research and evaluations focused on early childhood development, K-12 school systems, and institutes of higher education. Her work includes developing and conducting culturally responsive and equitable evaluations aimed at supporting the whole child, with a focus on children from birth to five and their families. She also has led large-scale impact evaluations to assess the efficacy of programs. She brings expertise working with a variety of local and state agencies in California, as well as with foundations and non-profits.

Dr. Gulnora Razykova is a medical doctor, health system strategist, and healthcare executive with more than 20 years’ experience leading and managing health and education projects. She is an expert in several health fields, having led multi-million-dollar projects for several donor agencies, including the United Nations Drug Control Programme and Department for International Development. Razykova has a clinical background and research experience in the social sector, clinical pharmacology, and healthcare environment in Tajikistan. She has extensive experience in private and government health system development and strengthening. She is adept in complex program management and especially skilled in financial planning, budgeting and monitoring. In addition, Razykova has extensive experience in human resources and results-based management.

Arun Asok is a seasoned impact investor with 15 years of experience investing in and managing a portfolio of impact enterprises across Asia and Africa, particularly those focused on healthcare, financial services, and energy access.  As a senior advisor in Abt’s International Development Division, Arun leads mobilizing private capital and structuring impact investments for various client projects. More broadly, he leads Abt’s private capital and impact investment strategy and execution, and convenes thought leadership activities to champion private capital as a tool for inclusive growth and social and economic wellbeing. Arun’s expertise spans fund structuring, investment management, portfolio management, and business operations while forging public-private partnerships between UN organizations, ministries, developmental institutions, and commercial investors.