Ellen Peters, "Innumeracy in the Wild: Misunderstanding and Misusing Numbers" (Oxford UP, 2020)

To many mathematicians and math enthusiasts, the word "innumeracy" brings to mind popular writing like that of John Allen Paulos. But inequities in our quantitative reasoning skills have received considerable interest and attention from researchers lately, including in psychology, development, education, and public health. Innumeracy in the Wild: Misunderstanding and Misusing Numbers (Oxford University Press, 2020) is a unified treatment of these broad-ranging studies, from the ways more and less numerate people differ in our perceptions of risk and our number-based decisions to the roots of our numeric faculties and how we can make the best of them. Dr. Ellen Peters has made significant contributions to the subject and brings her expertise and an exceptional clarity to its presentation. Precious little of the research surveyed in her book could fit into this interview! We discussed the three components of numeric ability—objective numeracy, subjective numeracy, and the innate number sense—and how they vary within and across populations. We talked through some key lessons from this literature, such as the importance of calibrating our self-efficacy to our real ability and an awareness of how our cultural allegiances can drive even our mathematical reasoning. And we identified some of the essential personal habits and policy levers (early childhood education!!) available to us in our efforts to improve our individual numeracy and our collective numeric decision-making. For a firm grounding in the state of knowledge and urgent open questions, there may be no better resource for many years to come. Suggested companion works: Contributions from the labs of Isaac Lipkus, Angela Fagerlin, John Opfer, Edward Cokely, Rocio Garcia-Retamero, Jakub Traczyk, Agata Sobków, Wändi Bruine de Bruin, Keith Stanovich, and Valerie Reyna. Ellen Peters, Ph.D., is the Philip H. Knight Chair, and Director of the Center for Science Communication Research, in the University of Oregon’s School of Journalism and Communication. As a decision