The purpose of the present study was to investigate the relationships among suicidality, substance use, self-esteem, family structure, and eight personality characteristics (harm avoidance, impulsivity, aggression, social recognition, cognitive structure, succorance, abasement, and achievement) with 337 talented, at-risk, adolescent girls. Results…

Considers effective dialogue between teacher and student essential for promoting meaningful learning in the classroom. Effective dialogue enables teachers and students to be active in the construction of shared understanding by making explicit the overlap between the perspectives held by students and teachers. Suggests that concept maps provide a…

This article applies Aron and Aron's (1986) self-expansion model to the service-learning context. The self-expansion model proposes a motivational framework for understanding why individuals are motivated to engage in service-learning opportunities that allow for meaningful social interaction. Using a survey design, this study confirms hypotheses…

In this concluding paper the guest editors reflect on the contents of this special issue, and give some suggestions for future use of the CST framework. An interesting disclosure is that in chaos-and-complexity research the unit of measurement is not the individual human being, but the collective (i.e. dyad, team, or group), seen as a holon.…

In the present article, we argue that the conceptual change approach to learning can apply in the case of mathematics, taking into consideration the particular nature of mathematical knowledge and the neurobiological bases of mathematical cognition. In the empirical study that is reported in this article, we investigated ninth graders'…

This study investigated the development of visual chunking skills in the processing of Chinese characters among Hong Kong pupils. One-hundred-seventy-nine primary school students from first, second and fourth grades were administered a character copying task. Children as young as 6 years of age were aware of character units and were able to apply…

Three experiments investigated the effects of rime consistency on reading and spelling among developing readers ranging in age from 7 to 11 years. Experiment 1 found that children read words with inconsistent feedforward mappings between orthography and phonology (O [right arrow] P) less accurately than consistent words. OP consistency interacted…

Childhood marks the dawn of human development. To organize, integrate, and advance knowledge about vocational development during this age period from a life-span perspective, we conducted a comprehensive review of the empirical vocational development literature that addresses early-to-late childhood. The review considers career exploration, career…

The aim of this study is to explore three different developmental dimensions in an aging population. Based on sentence completion responses, the investigation examines personal anticipations of possible gains, maintenance, and losses. Additionally, the effects of age and other personal and situational factors are examined. The study sample…

While astronomy has recently re-emerged in many science curricula, there remain unresolved teaching and learning difficulties peculiar to astronomy education. This paper argues that mental model building, the core process in astronomy itself, should be reflected in astronomy education. Also, this crucial skill may promote a better understanding of…

With the proposed introduction of a common framework for comparing qualifications within the European Union as a result of the Lisbon Agreement of 2000, the question of commonly agreed transnational concepts of skills and qualifications has become a pressing political and practical issue. The paper argues that there are grounds for doubting that…

This article presents a marital horizon theory of emerging adulthood that posits that young people's perceptions of marriage are central factors in determining subgroup differences in the length of emerging adulthood as well as the specific behaviors that occur during this period in the family life cycle. The model was tested with a sample of 813…

Four specific schemas of cognitive structures that adolescents may hold concerning interpersonal disagreements with their parents were identified, each reflecting an authoritative, authoritarian, indulgent, or a neglecting parenting style. To examine the occurrence of such schemas across high and low levels of psychosocial adjustment, 120 Swedish…

A 47-item structured Q-sort methodology was used to identify and analyze the frameworks held by experienced emergency response personnel. The questionnaire was designed to determine the following: the characteristics/behaviors considered important by people within specific fields of emergency response; differences between individuals within a…

In this article, the meanings students construct and the conceptual advances they make as they deal with ratio and proportion problems are described. The study cites episodes with a second grader, two fifth graders, and three seventh graders. A critical factor in students' comprehension of and solution to ratio and proportion problems is their…