We are a group of AEA members interested in understanding and enhancing the use of evaluation in various contexts. We aim to maximize the positive influence of evaluation through both the evaluation process and the results produced. Our membership comprises an interdisciplinary group of individuals who aspire to create thought and practical leadership around making evaluation more useful to all levels of evaluation partners.
Membership in our TIG indicates a commitment to making evaluations more useful and impactful.
2025 Evaluation Use & Influence TIG Leadership
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Chair

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Moria Ragan
Moira Ragan, Director, Research and Evaluation Division at Ripple Effect, brings more than 15 years of professional experience in research and evaluation, managing and overseeing rigorous projects in health and education. Ms. Ragan is an experienced evaluator, methodologist, researcher, psychometrician and project manager. She has extensive experience creating sampling and analytic plans, identifying appropriate statistical techniques based on study objectives, developing interview protocols, conducting and analyzing interviews, developing and piloting surveys, analyzing quantitative data (including complex statistical modeling) and integrating qualitative and quantitative findings to formulate recommendations. She oversees a team of project managers, analysts and coordinators to develop, coordinate and manage large-scale, mixed methods program evaluations. She has also consulted on and led evaluation designs and proposals, including evaluations funded by large federal grants and philanthropic organizations. Her project work encompassed all facets from design and instrument development to data collection, data analysis and interpretation. She also produced publications and reports that distilled often complicated information into substantively useful findings and recommendations. Additionally, she serves as a mentor to young and emerging evaluators.
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Program Chair

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Eliza Carroll
Eliza Carroll is a seasoned professional in public health and evaluation, specializing in epidemiology and biostatistics. She excels in transforming public health data into actionable strategies, utilizing geospatial, laboratory, syndromic, and environmental data to address population needs. Eliza has led multiple evaluations focused on behavioral health interventions and models and her career includes managing complex projects where she developed interactive dashboards and data-driven decision-making tools.
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Member Engagement & Communication

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Charmagne Campbell-Patton
Charmagne Campbell-Patton is a second-generation evaluator and twelfth generation European settler based in Minnesota. Her professional experience spans fifteen years of program design, implementation and evaluation work across a range of fields, including youth engagement, education, criminal and juvenile justice and philanthropy. She specializes in qualitative research methods and utilization-focused developmental evaluation. She is also a co-founder of the Blue Marble Evaluation network. Charmagne holds a BA in Political Science from Grinnell College and an MA in International Peace and Conflict Resolution from American University’s School of International Service. She is co-author of the 5th Edition of Utilization-Focused Evaluation, and has written several articles and blog posts on a range of evaluation topics. A global citizen with deep local roots, Charmagne resides near the Mississippi River on Dakota land in Minneapolis with her husband, two young children, cat and dog.
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Secretary

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Jennifer P. Villalobos
Jennifer P. Villalobos is an Assistant Professor of Evaluation Practice and chair of the Doctorate of Evaluation Practice (D.Eval) program at Claremont Graduate University. She also is a program evaluator, organizational psychologist, scholar, and researcher. She has a Ph.D. and master’s degree in Evaluation and Applied Research Methods with a co-concentration in Positive Organizational Psychology from Claremont Graduate University and a bachelor’s degree in Psychology and History from USC. Her primary academic interests focus on positive organizational interventions, transformative and social justice-oriented approaches to evaluation, and organizational initiatives focusing on Diversity, Equity, and Inclusion (DEI). With over 20 years of experience, she runs a consulting practice that engages local, national, and international organizations, spanning multiple industries, emphasizing workplace well-being, social justice, DEI, leadership, and Evaluation Capacity Building. As a proud Mexican American, she is passionate about fairness and equity and strives to be a positive model for her children and the Latinx community.
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Webmaster

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Minji Cho
Minji is a program and policy evaluator with a Ph.D. in the Evaluation and Applied Research Methods and a master's degree in International Development. She has extensive experience working in various social service sectors, including community-based organizations, corporate social responsibilities, and international non-governmental organizations. Her current interests include improving evaluation practices for decolonizing evaluation in international development program evaluation and developing local-driven methods.
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TIG Leadership & Member Participation
TIG Leaders are here to serve you. We welcome input to our annual program and business meeting. You may provide input in various ways: Send an email to any member of our executive team, send an email to our webmaster, join us at our annual business meeting (date, location, and time are posted on our Resources page), or join us at a conference program session sponsored by the Evaluation Use TIG. (Information on TIG-sponsored sessions may be found on this web site's Resources page.)