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Developmental studies have provided mixed evidence with regard to the question of whether children consider sample size and sample diversity in their inductive generalizations. Results from four experiments with 105 undergraduates, 105 school-age children (M=7.2 years), and 105 preschoolers (M=4.9 years) showed that preschoolers made a higher rate of(More)
Three experiments with 81 3-year-olds (M=3.62years) examined the conditions that enable young children to use the sample size principle (SSP) of induction-the inductive rule that facilitates generalizations from large rather than small samples of evidence. In Experiment 1, children exhibited the SSP when exemplars were presented sequentially but not when(More)
The ability to determine that diverse samples provide better evidence for generalization than non-diverse samples is an important inductive skill. Adults tend to utilize the diversity principle of induction (DP), but evidence regarding children's ability to do so is mixed. The two experiments reported here examined whether the method by which evidence is(More)
Recent evidence suggests that infants can generate expectations about future events from a sample of probabilistic data. However, little is known about the conditions that support the development of this ability. Three experiments tested the prediction that 8- and 12-month-olds respond to base rates as well as perceptual cues when they generate expectations(More)
A considerable amount of work has focused on the processes that underlie children's inductive reasoning. For instance, numerous studies explored the role of linguistic labels, perceptual similarity, and children's beliefs in generalization of properties to novel cases. The present studies investigated an aspect of induction that has received considerably(More)
Regardless of age there are mixed findings concerning the extent to which individuals utilize statistical features of input to make inductive inferences. Direct instruction seems to be one important factor in linking one's understanding of statistical properties with their reasoning. In the present study we examined the extent to which explicit training on(More)
A large body of research shows that adults will form illusory correlations in the course of category learning. Surprisingly little research has examined illusory correlations among children. Two experiments examined the formation of the illusory correlation in 3-and 5-year-olds. Experiment 1 provides evidence that these young children will not form illusory(More)
The political, economic and social landscapes of the 21st Century are increasingly dominated by complex, sociotechnical systems that are essential to human civilization, yet incompletely addressed with existing theory, tools, methods, and policies. Illustrative systems are found in transportation, information, finance, energy, health care, education,(More)