This research explored the development of one insight about the mind, namely, the belief that people's trains of thought differ even when they see the same stimulus. In Study 1, 5-year-olds, 9-year-olds, and adults heard stories about characters who saw the same object. Although the older groups predicted the object would trigger different trains…

We investigated how different psychophysical procedures affect frequency discrimination performance in children. Four studies used a design in which listeners heard two tone pairs and had to identify whether the first or second pair contained a higher frequency target tone. Thresholds for 6-and 7-year-olds were higher than those for 8- and…

Studied structure of Stanford-Binet: Fourth Edition for normal children who were not part of standardization sample. Found that, for children aged 2-6 years, either 2- or 3-factor model could be supported. For students aged 7-11, neither of 2 models studied was supported. Alternative model with verbal reasoning, quantitative reasoning,…