Although culture influences all human beings, there is a deeply embedded bias in American psychology that culture is more important for members of certain groups. This study replicates and extends beyond the seminal work of Causadias and colleagues (2018a, 2018b) by examining the degree to which psychology graduate students in the United States endorse the cultural (mis)attribution bias, the belief that culture is more important for racial/ethnic minorities' behavior whereas psychological processes are more influential for Whites' behavior. Two studies investigated this bias by testing five separate research hypotheses with a convenience and voluntary sample of psychology graduate students (N = 207). Study 1 consisted of an experimental task while Study 2 consisted of a follow-up survey with psychology graduate students. No support was found for any of the five research hypotheses, as this sample of psychology graduate students consistently endorsed egalitarian and impartial views and beliefs about the behavior of racial/ethnic minorities and Whites alike. Participants' responses did not vary based on their ethnic self-identification. While the results from this study were inconsistent with previous research that had found support for the cultural (mis)attribution bias among independent samples of psychology and developmental psychology faculty employed at the top 100 research universities in the US, such findings are nevertheless compelling in that they denote a possible attitudinal shift between generations and may reflect the committed efforts of higher education institutions incorporating diversity-relevant issues into their training programs. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]