We developed and psychometrically evaluated the Concise Scale of IndividualismCollectivism (CSIC) to support the growing need for cross-cultural research to better understand the relationship between culture and health. To construct the scale, we used the concept mapping technique. The CSIC contains 18 paired items, 9 of which are used to assess respondents' level of individualism and 9 to assess collectivism, rated using a 5-point Likert scale. We evaluated the instrument using a diverse sample (N = 249, Mage = 29.64, SD = SOCIAL