This article empirically tests a previously developed theoretical framework for mathematics identity based on students' beliefs. The study employs data from more than 9,000 college calculus students across the United States to build a robust structural equation model. While it is generally thought that students' beliefs about their own competence…

This article presents a description of how an interdisciplinary network of academic researchers, community-based programs, parents, and state agencies have joined together to design, test, and scale a suite of innovative intervention strategies rooted in new knowledge about the biology of adversity. Through a process of cocreation, collective…

Examined dual representation among toddlers and preschoolers in four studies. Found that dual representation was as difficult for 2.5-year-olds with a set of individual objects as it was with an integrated model. Decreasing the physical salience of a scale model made representation easier for 2.5-year-olds. Increasing the model's salience made…

Move sequence analysis revealed that, when presented with problems having subgoals difficult to order, 40 preschoolers between 45 and 70 months of age (1) tended to avoid backup; (2) were sensitive to incremental progress toward a goal; and (3) searched moves ahead for a goal. None of several indices of performance were reliably correlated with…

Tested predictions of dynamic field theory in study of 3-year-olds' location memory errors in task with homogeneous task space. Found that young children's spatial memory responses are affected by delay- and experience-dependent processes as well as the geometric structure of the task space. Both dynamic field theory and category adjustment models…

Conducted meta-analysis to examine empirical inconsistencies and theoretical controversies concerning false-belief tasks and understanding about mental states. Found that a combined model including age, country of origin, and four task factors accounted for 55 percent of the variance in false-belief performance. Findings are consistent with…

With no expectancy to perform, vicarious reward had no effect on spontaneous imitation. (Authors)

Employed a trial-by-trial analysis of spelling-strategy use to examine whether the overlapping-waves model could account for strategy choices in spelling for children tested in first and second grade. Found that the model was useful for understanding the development of spelling, despite the fact that explicit use of backup strategies had a minimal…

Reveals that different aspects of the environment differentially contributed to variability in communication performance of one-year-old infants. Findings support the environmental specificity hypothesis and underline the need to consider physical environmental parameters when investigating environmental influences. (Author/RH)

Acquiring the norm of altruism is conceived as a three-step process involving presocialization, awareness that others value altruistic behavior, and internalization of the norm. The present studies investigated how first-, second-, and third-grade children attain the second step. Attainment, occurring around second grade, was a function of…

Discusses issues making developmental studies of forgetting difficult to interpret: (1) stages-of-learning confounds, (2) failure to separate forgetting from performance factors operating on retention tests, and (3) failure to disentangle contributions of storage-based and retrieval-based forgetting to retention test performance. A paradigm and…

Performance demonstrated that the conceptual style and cognitive tempo of the model changed the styles and tempos of the Ss and that these effects generalized to independent tasks. (Author)

Attaining and generalizing a new concept were studied in Mexican- and Anglo-American fifth graders. Both modeling and repetition improved performance. (Authors/MB)

Calls for a process-oriented approach to study of categorization in infancy. Maintains that further understanding of infant categorization and its changes with development requires a more direct assessment of infants' category formation. Argues that two research directions will enhance understanding of categorization: (1) contextual variations on…