In this article, we describe a multistudy project designed to explain observed cross-national differences in risk taking between respondents from the People's Republic of China and the United States. Using this example, we develop the followingrecommendations for cross-cultural investigations. First, like all psychological research, cross-cultural studies should be model based. Investigators should commit themselves to a model of the behavior under study that explicitly specifies possible causal constructs or variables hypothesized to influence the behavior, as well as the relationship between those variables, and allows for individual, group, or cultural differences in the value of these variables or in the relationship between them. This moves the focus from a simple demonstration of cross-national differences toward a prediction of the behavior, including its cross-national variation. Ideally,the causal construct hypothesized and shown to differ between cultures should be demonstrated to serve as a moderator or a mediator between culture and observed behavioral differences. Second, investigators should look for converging evidence for hypothesized cultural effects on behavior by looking at multiple dependent variables and using multiple methodological approaches. Thus, the data collection that will allow for the establishment of conclusive causal connections between a cultural variable and some target behavior can be compared with the creation of a mosaic.Since its beginnings as Volkerpsychologie in 19th-century Germany, cross-cultural psychology has never been able to establish itself as something more than a minor subdiscipline of psychology (see Cole, 1996, Chap. I, for a brief history). Its contributions are largely confined to books, edited volumes, and its own speciality journals, which are not widely read by mainstream psychologists. Yet, the argument, put forth by cross-cultural psychologists, that all conclusive psychological investigation must involve comparisons of behavior across cultures seems hard to refute.Given the complexities of human life and the importance of culture as a behavioral determinant, it obviously behooves psychologists to test the cross-cultural generality of their principles before considering them established.