Objectives: There are two potentially useful but nonintersecting efforts to help ensure that psychological science produces valid and credible information and contributes to the understanding of diverse human experiences. Whereas North American ethnic minority psychology research/cultural diversity science (EM/ D) emphasizes cultural competency to yield contextualized psychological understanding of understudied and underserved minority populations, current open science (OS) approaches emphasize material and data sharing, and statistical proficiency to maximize the replicability of mainstream findings. To illuminate the extent of and explore reasons for this bifurcation, and OS's potential impact on EM/D, we conducted three studies. Method and Results: In Study 1, we reviewed editorial/publishing policies and empirical articles appearing in four major EM/D journals on the incentives for and use of OS. Journals varied in OS-related policies; 32 of 823 empirical articles incorporated any OS practices. Study 2 was a national mixed-methods survey of EM/D scholars' (N = 141) and journal editors' (N = 16) views about and experiences with OS practices. Emerged themes included beliefs about the impact of OS on scientific quality, possible professional disadvantages for EM/D scholars, and concerns about the welfare of and ethical risks posed for communities of color. In Study 3, we explored community research participants' beliefs about data sharing and credibility of science/scientists (N = 1,104). Participants were receptive of data sharing and viewed psychological science favorably. Conclusions: We provide data-driven recommendations for researchers to assemble the best tools for approaching the knowledge-production process with transparency, humility, and cultural competency.This document is copyrighted by the American Psychological Association or one of its allied publishers.This article is intended solely for the personal use of the individual user and is not to be disseminated broadly.Editor's Note. Alex Czopp, Su Yeong Kim, and John Ruiz served as the action editors for this article.-SYK.