Only one previous developmental study of Stroop task performance (Schiller, 1966) has controlled for differences in processing speed that exist both within and between age groups. Therefore, the question of whether the early developmental change in the magnitude of Stroop interference actually persists after controlling for processing speed needs…

Many students' knowledge of fractions is adversely affected by whole number bias, the tendency to focus on the separate whole number components (numerator and denominator) of a fraction rather than on the fraction's magnitude (ratio of numerator to denominator). Although whole number bias appears early in the fraction learning process and under…

Identifying change at the individual level is an important goal for researchers, educators, and clinicians. We present a set of statistical procedures for identifying individuals who depart from a normative change. Using Latent Change Scores models (LCS), we illustrate how the Individual Likelihood computed from a statistical model for change…

Many students' knowledge of fractions is adversely affected by whole number bias, the tendency to focus on the separate whole number components (numerator and denominator) of a fraction rather than on the fraction's integrated magnitude (ratio of numerator to denominator). Although whole number bias appears early in the fraction learning process…

While behavioral and educational data characterize a fourth grade shift in reading development, neuroscience evidence is relatively lacking. We used the N400 component of the event-related potential waveform to investigate the development of single word processing across the upper elementary years, in comparison to adult readers. We presented…

The goal of the present study was to test opposing views about 4 issues concerning predictors of individual differences in Chinese written composition: (a) whether morphological awareness, syntactic processing, and working memory represent distinct and measureable constructs in Chinese or are just manifestations of general language ability; (b)…

Previous research has indicated that boys and girls differ in the ways they display aggression and experience victimization. This study examined the ability of American children to correctly differentiate between various forms of aggressive acts and pro-social behavior. The results indicate that though there appear to be developmental differences…

In Experiment 1, Japanese children (4-, 5-, 7-, and 10-year-olds (n = 78)) and adults (n = 36), answered questions about the possibility of psychogenic bodily reactions, i.e., bodily outcomes with origins in the mind. The 4- and 5-year-old preschoolers typically denied that bodily conditions could originate in mental states. Developmentally,…

When first, fourth, and fifth grade speakers played a referential communication game with a fictitious listener, they were more likely to give redundant messages to listeners with whom they had no common shared experience or to strangers than to listeners with whom they had shared a previous experience. (RH)

Three studies investigated developmental changes in immanent justice responding by asking participants to respond to vignettes in which a person's bad behaviour was followed by a negative consequence. Study 1 consisted of 152 sixth graders and 128 college students and presented participants with a vignette that examined the notion of bad people…

Preschool children (N=23) and fifth-grade children (N=23) and their mothers judged the acceptability of corporal punishment as a function of the type of transgression (acting danerously, violating a social rule, or violating a moral precept) and discipline agent. Children of both ages and their mothers discriminated among different types of…

Examined preschoolers' and second and fifth graders' development of two types of perspective taking: (1) perspective taking based on differences in the information available to two people; and (2) perspective taking based on differences in weighting the same information. (RH)

Second and fifth graders from five sociometric status groups were interviewed for their attributional, emotional, and behavioral responses to hypothetical social encounters with same-sex and same-grade peers with the same sociometric status. Results demonstrate that children's manner of processing social information is a complex phenomenon based…

Third and fifth grade children (average age 8.6 and 10.6 years) and adult participants were tested with printed words of varying length in a new on-line identification task (the luminance increment paradigm, LIP) and a speeded naming task. Effects of general length (length in letters, phonemes and syllables) were shown to decrease systematically…

Over the past 10 years, numerous empirical investigations of learning in physics have been carried out at the Institute of Physics Education (IPE) at the University of Bremen in Germany. The objectives of these investigations were: (1) to describe in detail individual learning processes; (2) to construct theoretical principles of individual…