Our interest is in the development of gratitude as a moral virtue, and its variability across different cultural contexts. Given psychology's overreliance on samples collected from the United Sates, Western Europe, and Australasia, we contrasted patterns of age-related expressions of gratitude among a sample of U.S. 7- to 14-year-old children with…

Research points to the importance of sociocultural and developmental experiences in understanding children's social supports. The present study examines qualitative themes about children's social supports, derived from a multicountry study of 604 school-aged children (ages 4-19 years). Using the ecomap (a child-generated paper-and-pencil drawing…

We present the results of a longitudinal study of the formation of graphomotor skills in elementary school children between the ages of seven and nine (students in the first and second grades). Patterns in how the skills under investigation develop in normal children and those with learning disabilities were revealed using a computerized survey of…

The study examined the contribution of reinforcement sensitivity to childhood personality at three levels of the hierarchical structure, mid-level traits, the Big Five and two higher-order factors, and the moderating role of sex and age in a sample of 3-18-year-olds. The canonical correlation analyses indicated that reinforcement sensitivity and…

The aim of this study was to explore child and adolescent personality in the Russian culture, addressing gender and age differences, and to examine personality and family effects on children's Internalizing and Externalizing problems. Parents of 1,640 Russian children aged 3-18 years completed the Inventory of Child Individual Differences…

Exploring whether deductive reasoning can develop adequately without special instruction, this paper presents two studies that examine the development of meta-components of deductive reasoning, first in algebra, and second in verbal reasoning. The first study examined students' understanding of logical necessity in algebraic tasks in different…

We compared health status, anthropometric and psychological development of 123 children adopted before 18 months of age from China, East Asia (Vietnam, Taiwan, Thailand, South Korea, Cambodia), and Eastern Europe (mostly Russia). Data were collected close to the time of arrival, and 3 and 6 months later. Anthropometric measures included weight,…