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Dr. Lianne Fisman is an experienced researcher and a recognized expert in qualitative and mixed method research design, and analysis. She specializes in evaluating and strengthening programs that support economically disadvantaged individuals and communities. Dr. Fisman currently leads Abt’s Qualitative and Mixed Methods sub-capability. During her tenure at Abt, Dr. Fisman has served as project director and task leader on projects related to a variety of policy areas, including housing, youth and community development, education, and financial wellness.

Nichole Fiore is a Principal Associate with over 15 years of experience evaluating housing and homelessness programs across the country, developing deep expertise on homeless service systems, organizational capacity, political and community will, unsheltered homelessness, and permanent supportive housing. Recognizing the critical link between stable, safe housing and overall well-being, Fiore is proven leader bringing together stakeholders who work across many jurisdictions and sectors to address the needs and improve the lives of people experiencing homelessness. She is a regular source for media outlets, often on the topic of homelessness in California.

Geoff Scahill has over 20 years of experience working in and managing international development programs. He has worked extensively within Papua New Guinea (PNG) and the Pacific – predominantly in Indonesia, Fiji, Samoa, and the Solomon Islands. He brings a long history as a health sector professional and has held roles as a health management advisor and health systems adviser in Pacific Island Countries. Geoff draws on his background in finance and economics to work with counterparts to increase efficiencies within the programs Abt Global delivers.

Joe Donahue is an environmental policy specialist and portfolio manager with more than 15 years of experience supporting governments in developing and implementing policies and programs focused on climate change, clean energy, ozone layer protection, and solid waste management. His work spans both domestic and international programs and initiatives. Technical areas of expertise include climate change mitigation strategies; international capacity building; greenhouse gas quantification methods; short-lived climate pollutants, especially methane, black carbon, and hydrofluorocarbons; and clean energy policies.

Lauren Olsho is a senior health economist and evaluator with expertise in random assignment, quasi-experimental evaluation methods, economic modeling methodology, and advanced statistical and econometric analysis.Olsho’s primary research interests are in health, nutrition and health behaviors in vulnerable populations – including the elderly, the poor, program participants, minorities, arrestees and at-risk youth.Olsho recently served as principal investigator on a cluster random assignment evaluation of the Agency for Healthcare Research & Quality On-Time Falls Prevention Initiative, a clinical decision support intervention to reduce falls in long-term care settings.

Radha Roy is a mixed-methods researcher and senior evaluation leader with over 16 years of experience designing and directing large-scale federal evaluations of workforce development, income support, and education programs.

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.

Lauren Pittenger comes to Abt with more than 20 years of experience working in or as a consultant to federal government agencies. She has strong grounding in research and research-based consulting to government clients. She also has extensive experience leading and growing business, managing technical and scientific projects, and coaching and supporting account teams. She has served as a director at Guidehouse, scientific program manager at Booz Allen Hamilton, and lab manager at the U.S. Department of Agriculture. She has worked with the Centers for Disease Control and Prevention (CDC), Food and Drug Administration (FDA), the Canadian Public Health Laboratory Network, the Gates Foundation and the Association of Public Health Laboratories.