Behavioral scientists routinely publish broad claims about human psychology and behavior in the world's top journals based on samples drawn entirely from Western, Educated, Industrialized, Rich, and Democratic (WEIRD) societies. Researchers – often implicitly – assume that either there is little variation across human populations, or that these “standard subjects” are as representative of the species as any other population. Are these assumptions justified? Here, our review of the comparative database from across the behavioral sciences suggests both that there is (...) substantial variability in experimental results across populations and that WEIRD subjects are particularly unusual compared with the rest of the species – frequent outliers. The domains reviewed include visual perception, fairness, cooperation, spatial reasoning, categorization and inferential induction, moral reasoning, reasoning styles, self-concepts and related motivations, and the heritability of IQ. The findings suggest that members of WEIRD societies, including young children, are among the least representative populations one could find for generalizing about humans. Many of these findings involve domains that are associated with fundamental aspects of psychology, motivation, and behavior – hence, there are no obviousa priorigrounds for claiming that a particular behavioral phenomenon is universal based on sampling from a single subpopulation. Overall, these empirical patterns suggests that we need to be less cavalier in addressing questions ofhumannature on the basis of data drawn from this particularly thin, and rather unusual, slice of humanity. We close by proposing ways to structurally re-organize the behavioral sciences to best tackle these challenges. (shrink)

The 1920s and 30s were key decades for the history of American social science. The success of such quantitative disciplines as economics and psychology during World War I forced social scientists to reexamine their methods and practices and to consider recasting their field as a more objective science separated from its historical foundation in social reform. The debate that ensued, fiercely conducted in books, articles, correspondence, and even presidential addresses, made its way into every aspect of social science thought of (...) the period and is the subject of this book. Mark C. Smith first provides a historical overview of the controversy over the nature and future of the social sciences in early twentieth-century America and, then through a series of intellectual biographies, offers an intensive study of the work and lives of major figures who participated in this debate. Using an extensive range of materials, from published sources to manuscript collections, Smith examines "objectivists"--economist Wesley Mitchell and political scientist Charles Merriam--and the more "purposive thinkers"--historian Charles Beard, sociologist Robert Lynd, and political scientist and neo-Freudian Harold Lasswell. He shows how the debate over objectivity and social purpose was central to their professional and personal lives as well as to an understanding of American social science between the two world wars. These biographies bring to vivid life a contentious moment in American intellectual history and reveal its significance in the shaping of social science in this country. (shrink)