Three experiments with preschool- and young school-aged children (N = 75 and 53) explored the kinds of relations children detect in samples of instances (descriptive problem) and how they generalize those relations to new instances (inferential problem). Each experiment initially presented a perfect biconditional relation between two features (e.g., all and only frogs are blue). Additional examples undermined one of the component conditional relations (not all frogs are blue) but supported another (only frogs are blue). Preschool-aged children did not distinguish (...) between supported and undermined relations. Older children did show the distinction, at least when the test instances were clearly drawn from the same population as the training instances. Results suggest that younger children’s difficulties may stem from the demands of using imperfect correlations for predictions. Older children seemed sensitive to the inferential problem of using samples to make predictions about populations. (shrink)

Cognitive reflection is the tendency to override an intuitive response so as to engage in the reflection necessary to derive a correct response. Here, we examine the emergence of cognitive reflection in a culture that values nonanalytic thinking styles, Chinese culture. We administered a child‐friendly version of the cognitive reflection test, the CRT‐D, to 130 adults and 111 school‐age children in China and compared performance on the CRT‐D to several measures of rational thinking (belief bias syllogisms, base rate sensitivity, denominator (...) neglect, and other‐side thinking) and normative thinking dispositions (actively open‐minded thinking and need for cognition). The CRT‐D was a significant predictor of rational thinking and normative thinking dispositions in both children and adults, as previously found in American samples. Adults’ performance on the CRT‐D correlated with their performance on the original CRT, and children's performance on the CRT‐D predicted rational thinking and normative thinking dispositions even after adjusting for age. These results demonstrate that cognitive reflection, rational thinking, and normative thinking dispositions converge even in a culture that emphasizes holistic, nonanalytic reasoning. (shrink)