Lab Members

Lab Director

Ellen Peters

Dr. Peters recently became the Philip H. Knight Chair and Director of the Media Center for Science and Technology in the School of Journalism and Communication at the University of Oregon. She conducts basic and applied research in judgment and decision making. In her research, Dr. Peters focuses on understanding the basic building blocks of human judgment and decision making and especially how affective, intuitive, and deliberative processes help people to make decisions in an increasingly complex world. She studies decision making as an interaction of characteristics of the decision situation and characteristics of the individual and is particularly interested in issues of number processing, affect and emotion, and adult aging in judgment and decision making. She is a Fellow of the American Association for the Advancement of Science (AAAS), the American Psychological Association, the Association for Psychological Science, and the Society of Experimental Psychology.  For more information about Dr. Peters, visit her faculty page or the CAIDe lab homepage.

Affiliated Faculty

Hal Arkes

Hal R. Arkes is an Emeritus Professor of Psychology at The Ohio State University. He received his B.A. from Carleton College in 1967 and his Ph.D. in Psychology in 1971 from the University of Michigan. He served as a program director at the National Science Foundation in Washington during 1993-1995 and again in 1998-2000. In 1996-1997 he served as the President of the Society for Judgment and Decision Making. His research interests are in judgment and decision making, principally medical, legal, and economic decision making. His most prolific contribution is serving tens of thousands of meals as a cook in the US Army.

Brittany Shoots-Reinhard

Brittany is a Research Faculty member and the PI for the CAIDe Lab at OSU and a Research Associate in CAIDe Lab at Oregon. She completed her B.S. in psychology and Ph.D. in social psychology from Ohio State. Her research interests include judgment and decision making, attitudes and persuasion, and motivation. Her current projects involve the antecedents and consequences of objective and subjective numeracy as well as factors influencing the efficacy of risk communications (e.g., tobacco warning labels).

Research Associates

Martin Tusler

Martin is a Research Associate in the CAIDe Lab. He assists with experiment design, programming, analysis, and dissemination.




Graduate Students

Hayley Svensson

Hayley graduated magna cum laude from the Ohio State University receiving a B.A. degree with research distinction in Psychology as well as with a minor in Organizational Communication.  Hayley’s research interests include self-regulation, goal-pursuit, and more generally, motivation. Hayley attends Rutgers University, pursuing a Ph.D. in Social Psychology.


Mason Shihab

Mason is pursuing a Master’s degree in Behavioral and Decision Sciences at the University of Pennsylvania. He previously graduated summa cum laude from Franklin University with a B.S. in Interdisciplinary Studies focusing in analytic philosophy. He is interested in the environmental and social mechanisms that support sustainable group behavior change. In particular, this includes financial decision making and incentives, risk perception, criminal justice reform, and motivation and productivity.


Research Assistants

Maggie Hart

Maggie is a fourth-year undergraduate student majoring in psychology with a minor in Human Development and Family Sciences. She is the vice president of a tap dancing club on campus called ‘Buckeyes on Tap’, a former psychology student ambassador, and a course assistant for freshman survey psychology classes. Maggie is interested in counseling and developmental psychology and plans to go to grad school for clinical mental health counseling next fall.


 Jeremy Huang

Jeremy is a third-year undergraduate student majoring in psychology and data analytics.  His areas of interest include Human-Computer Interaction and User Experience Research.  After graduation, he plans to attend graduate school pursing a master’s degree in Information Science.



Blake Pierce

Blake is an Ohio State University post-baccalaureate research assistant at the CAIDe lab with a double major in Psychology and Classics. Their areas of interest include how biases impact the neural mechanisms of memory as well as the role of bias in the development of pseudoscientific beliefs. Blake plans to attend graduate school to obtain a Ph.D. in cognitive psychology.



Joe Reiter

Joe is a third-year student majoring in psychology. His interests include abnormal psychology, memory and cognition, beliefs, and self-conceptualization. After graduation, he plans on pursuing a Ph.D. in clinical, cognitive, or social psychology.



Brielle Robinson

Brielle is a second-year undergraduate student majoring in Psychology with a minor in Organizational Communication.  She is particularly interested in behavioral and developmental psychology. After graduation, she plans on pursuing a Ph.D. in cognitive psychology.



Caroline Rueter

Caroline is a first-year student double majoring in psychology and philosophy, politics, and economics. She is working on an independent project under the supervision of Dr. Shoots-Reinhard, focusing on subjective numeracy in parents and their children. She hopes to one day pursue a career in politics.



Former Post-Doctoral Researchers

Pär Bjälkebring

Par’s research interest concerns how emotions and cognition influence decision-making. His current research centers on how emotions, numeracy, memory, and age influence decision-processes. He is currently working with different aspects of numeric competencies, how they influence decision-making, and how these might be improved. He received his Ph.D. in Psychology and now is a Researcher in the Department of Psychology at the University of Gothenburg in Sweden.


Breann Erford

Breann received her M.A. in quantitative psychology and Ph.D. in decision psychology from the Ohio State University. Her research interests include decision making, numeracy, and predecisional biases. Her current work is focused on the effects of objective and subjective numeracy on health-related judgments and decisions.


Abigail Evans

Abby completed her B.A. in psychology at Indiana University and her Ph.D. in social psychology at the University of Iowa. Her research interests lie at the intersection of attitude change, health behavior, and decision making. Her current research investigates how people understand, interpret, and utilize information within the contexts of tobacco regulation, cancer prevention, and medical decision making.

Dana Chesney

Dana Chesney (Ph.D.) researches understanding of numbers and number concepts in adults and children. She is specifically interested in how this understanding impacts decision making and life outcomes, and how this understanding might be improved. She completed her undergraduate work at the University of Virginia, and her doctoral work at Rutgers University, New Brunswick, with Rochel Gelman. She went on to work with Nicole McNeil at the University of Notre Dame and Ellen Peters here at The Ohio State University. Dana is now working as an Assistant Professor at St. John’s University.

Former Graduate Students

Mary Kate Tompkins

Mary Kate graduated magna cum laude from The Ohio State University with a B.S. degree and research distinction in psychology. Her research interests include numeracy, choice architecture, affect, and health.  She has since received her Ph.D. from The Ohio State University.


David Falco

David received his M.A. in Biological and Experimental Psychology, B.S. in Applied Statistics, and B.A. in Psychology from American University.  His research interests include numeracy, consumer behavior, behavioral economics, and memory.



Jaime Gilden

Jaime graduated summa cum laude from Montana State University with a B.S. degree and honors distinction in psychology. Her research interests include numeracy, risk perceptions, and environmental decision making.



Tyler MacDonald

Tyler graduated magna cum laude from the Ohio State University receiving a B.A. degree with research distinction in political science. He is currently pursuing a Ph.D. in Decision Psychology with a concentration in consumer behavior at Boston University. His research broadly examines factors that influence how people process and use information to make consumer and financial decisions. He is particularly interested in affect, time and money perceptions, numerical cognition, impatience, & judgments of utility.

Louise Meilleur

Louise completed her B.A.A Honors at Kwantlen Polytechnic University in Vancouver Canada. Her research interests are in medical decision making and public policy.  She is currently the Director of Health Surveillance for the First Nations Health Authority (FNHA) in British Columbia, Canada.



Dan Schley

Dan completed his B.A. in economics at the University of California-San Diego. His research interests center around numerical cognition and the subjective judgments made about objective numbers. Much of his research is focused around differentiating sources of information (learning about probabilities through experience as opposed to description), the subjective values of the differing sources and how the information is processed intuitively and deliberately. In addition, he is also interested in repeated decisions, economic decision models, behavioral game theory, and probabilistic inference. Dan has since received his Ph.D. from The Ohio State University and is currently an Assistant Professor of Marketing at Erasmus University.

Michael Silverstein

Michael graduated magna cum laude from Muhlenberg College with a B.A. and honors in Psychology. His research interests include numeracy, affect, motivated cognition, risk literacy, health, and how irrelevant factors influence judgments and decisions. He’s currently working in the CAIDe lab at the University of Oregon.



Aleksandr Sinayev

Aleksandr graduated magna cum laude from Binghamton University with degrees in mathematics and psychology and a minor in economics. He has research experience in memory, cognition and vocational behavior. Currently, he is interested in how various formats (such as frames and reference classes) influence judgment and decision making, including risk perception. He is also interested in developing mathematical and statistical models to understand areas of judgment and decision making that have traditionally resisted this sort of measurement (e.g., affect). For more information on Aleks, visit his website.

Former Visiting Scholars

Kevin Tiede

Kevin Tiede graduated from the University of Koblenz-Landau, Germany, with a B.S. degree in psychology and is currently a master’s student at the University of Koblenz-Landau. His research interests include numeracy and judgment and decision making.



Former Research Staff

Joe Macisco

Joe graduated magna cum laude with a B.A. in psychology and minors in neuroscience and criminology from The Ohio State University.  His research interests include judgment and decision making, games, and health.



Former Undergraduate Research Assistants

Leayh Abel, Kali Amoah, Sara Baugher, Shivangi Bhardwaj, Elli Billisits, Kate Caldwell, Quijia Chen, Gillian Davis, Anna Dewan, Colin Gloudemans, Ashley Greivenkamp, Colleen Fazio, Alexis Froning, Yihui Gong, Caitlin Hand, Olivia Hardtke, Molly Hawkins, Samantha Kassirer, Lindsay Keeran, Lea Lai, Nick Larbes, Kelsey Lewis, Katie Martin, Madison Maskalunas, Tomas Moreno-Vasquez, Niraj Patel, Ariana Quintana, Kara Ruder, Matt Scalia, Elizabeth Seguin, Diandra Showe, Janell, Verdream, David Weiner, Joey Wong