“…In several studies, adults' CRT scores strongly predicted their adherence to normative principles of decision making (Frederick, 2005; Otero et al, 2022; Stanovich et al, 2016; Toplak et al, 2011). To determine whether the CRT‐D functions similarly for children, we and our colleagues recruited elementary school‐aged children from playgrounds in Pasadena, CA ( M age = 8 years, 1 month; 49% female) and assessed whether their performance on the CRT‐D predicted their performance on child‐friendly versions of heuristics and biases tasks (Gong et al, 2021; Young et al, 2018). The children in this study, as well as the other studies described later (Young & Shtulman, 2020a, 2020b), came from a community that is approximately 35% White (excluding Hispanic/Latino), 35% Hispanic or Latino, 18% Asian, and 8% Black; the community is largely middle class, with 14% of the population living below the poverty line (U.S. Census Bureau, 2021).…”