In two studies of knowledge about the properties and processes of memory for the times of past events, 178 children from 5 through 13 years of age and 40 adults answered questions about how they would remember times on different scales, how temporal memory is affected by retention interval, and the usefulness of different methods. The adults showed quite accurate knowledge about the main properties of memory for time and the processes that underlie it. Different properties and processes were first understood at ages ranging from 8 years to 12 years or later. Knowledge of the roles of reconstruction and impressions of temporal distances appear well after children use them to remember the times of events. 相似文献
Age differences in decision making indicate that children fail to anticipate outcomes of their decisions. Using heart rate and skin conductance analyses, we tested whether developmental changes in decision making are associated with (a) a failure to process outcomes of decisions, or (b) a failure to anticipate future outcomes of decisions. Children aged 8-10, 12-14, and 16-18 years performed the Hungry Donkey task, a child version of the Iowa Gambling Task, while heart rate and skin conductance activity were continuously recorded. Children aged 16-18 learned to make advantageous choices over task blocks faster than the two younger age groups. Age differences were present for anticipation-related autonomic activity but not outcome-related autonomic activity. The results are interpreted vis-à-vis models of prefrontal cortex maturation. 相似文献
To what extent do children with autism (AD) versus typically developing children (TD) rely on attentional and intentional cues to learn words? Four experiments compared 17 AD children (M age=5.08 years) with 17 language- and 17 mental-age-matched TD children (M ages=2.57 and 3.12 years, respectively) on nonverbal enactment and word-learning tasks. Results revealed variability in all groups, but particularly within the AD group. Performance on intention tasks was the most powerful predictor of vocabulary in the AD group but not in the TD groups. These findings suggest that word learning cannot be explained exclusively by either attentional or intentional processes, and they provide evidence of a special role for intentional understanding in the vocabulary development of AD children. 相似文献
Although a negative association between hyperactivity and academic achievement is well documented, little is known about the genetic and/or environmental mechanisms responsible for the association. The present study explored links between parent and teacher ratings of hyperactive behavior problems and teacher-assessed achievement in a sample of 1,876 twin pairs (mean age 7.04 years). The results did not differ across rater, nor were there significant differences between males or females or for twins in the same or different classrooms. Hyperactivity was significantly correlated with achievement. Multivariate model-fitting analyses revealed significant genetic and nonshared environmental covariance between the two phenotypes. In addition, bivariate heritabilities were substantial, indicating that the phenotypic correlations between hyperactivity and achievement were largely mediated by genetic influences. 相似文献
This study examined developmental trends in object and spatial working memory (WM) using heart rate (HR) to provide an index of covert cognitive processes. Participants in 4 age groups (6-7, 9-10, 11-12, 18-26, n=20 each) performed object and spatial WM tasks, in which each trial was followed by feedback. Spatial WM task performance reached adult levels before object WM task performance. The differential developmental trends for object and spatial WM found in this study are taken to suggest that these WM components are separable. Negative performance feedback elicited HR slowing that was more pronounced for adults than for children. The development of performance monitoring as indexed by covert HR slowing following performance feedback contributes to WM performance. 相似文献
Kohlberg's (1966) hypothesis that the attainment of gender constancy motivates children to attend to gender norms was reevaluated by examining these links in relation to age. Ninety-four 3- to 7-year-old children were interviewed to assess whether and how constancy mediates age-related changes in gender-related beliefs. As expected, results indicated a general pattern of an increase in stereotype knowledge, the importance and positive evaluation of one's own gender category, and rigidity of beliefs between the ages of 3 and 5. Moreover, the stability phase, rather than full constancy, mediated some of these relations. After age 5, rigidity generally decreased with age, with relations primarily mediated by consistency. 相似文献
Fifth-grade students with learning disabilities (LD) and their typically achieving (TA) peers participated in an 8-week investigation about 19th-century U.S. westward migration. During their investigations, the students analyzed primary and secondary sources to understand the experiences of these emigrants and Native peoples. The analysis of source material was preceded by teacher-led discussions about the possibility of bias in evidence that affects the trustworthiness of historical documentation. Quantitative analyses showed that these investigations were associated with gains in students' knowledge about the period of westward expansion and a better understanding of historical content and historical inquiry; however, these gains were not always comparable for students with LD and their TA peers. Furthermore, misconceptions about this historical period and the processes of historical investigation were evident in students' responses before and after instruction. We discuss how design features of the instruction and its implementation may have contributed to the development and persistence of these misconceptions. 相似文献
OBJECTIVE: The Children's Advocacy Center (CAC) model of child abuse investigation is designed to be more child and family-friendly than traditional methods, but there have been no rigorous studies of their effect on children's and caregivers' experience. Data collected as part of the Multi-Site Evaluation of Children's Advocacy Centers were used to examine whether CACs improve caregivers' and children's satisfaction with investigations. METHODS: Nonoffending caregiver and child satisfaction were assessed during research interviews, including the administration of a 14-item Investigation Satisfaction Scale (ISS) for caregivers. Two hundred and twenty-nine sexual abuse cases investigated through a CAC were compared to 55 cases investigated in communities with no CAC. RESULTS: Hierarchical linear regression results indicated that caregivers in CAC cases were more satisfied with the investigation than those from comparison sites, even after controlling for a number of relevant variables. There were few differences between CAC and comparison samples on children's satisfaction. Children described moderate to high satisfaction with the investigation, while a minority expressed concerns about their experience. CONCLUSIONS: The CAC model shows promise for improving families' experiences, but to build upon this promise, agencies will need to systematize procedures for refining and adapting the model as new research becomes available. 相似文献
This paper reports early findings of a longitudinal research project on the experiences of beginning teachers in England. In the first phase of the study (2003–2004), data were generated via: (1) in‐depth, face to face interviews with 85 student teachers throughout England; and (2) self‐completion questionnaires, returned by 4,790 student teachers across a range of initial teacher preparation (ITP) routes. Through these methods the study set out to explore student teachers' accounts of their motivations for entering ITP, their preconceptions and expectations of teaching and ITP, and their early experiences as student teachers. A number of general themes were found to cut across all of these areas, and are presented here as core features of the experience of becoming a student teacher. These relate to the concept of teacher identity, the role of relationships, the notion of relevance, and the central presence of emotion.
Cette étude décrit les conclusions préliminaires d'une recherche continue sur les expériences de ceux qui sont en train de devenir professeurs d'école en Angleterre. En première phase de l'étude (2003–2004), les données ont été recueillies par: 1) des entretiens approfondis en tête‐à‐tête avec 85 professeurs stagiaires dans toute l'Angleterre; et 2) des questionnaires, remplis eux‐mêmes par 4,790 professeurs stagiaires sur un échantillon de préparations initiales de professeur (PIP). Avec ces méthodes l'étude avait pour but d'explorer les explications des professeurs stagiaires concernant leur motivation pour entrer dans la PIP, leurs idées reçues et leurs attentes de l'enseignement et de la PIP, ainsi que leurs expériences initiales de professeur stagiaire. On a trouvé un nombre de thèmes généraux à travers tous ces domaines, et ceux‐ci sont présentés ici comme caractéristiques fondamentales de l'expérience vécue de professeur stagiaire débutant. Ils sont relatifs aux concepts suivants : l'identité du professeur, le rôle des relations, la notion de pertinence et la présence capitale de l'émotion.
Este documento es un informe sobre los primeros resultados de un proyecto de investigación longitudinal sobre las experiencias de profesores principiantes en la Inglaterra. En la primera fase del estudio (2003–2004), los datos fueron obtenidos a partir de dos fuentes: minuciosas entrevistas cara a cara con 85 profesores en prácticas por toda Inglaterra y cuestionarios personales que fueron devueltos por 4,790 profesores en prácticas procedentes de distintas ramas de la ITP (preparación para profesores principiantes). A través de estos métodos, el estudio fue lanzado con el propósito de sondear las razones que motivaron a los profesores en prácticas a entrar en la ITP, sus preconcepciones y expectativas en cuanto a la ITP y a dar clase y sus primeras experiencias como profesores en prácticas. Estas áreas presentaron una serie de temas generales comunes que son presentados aquí como características centrales de la experiencia de convertirse en profesor en prácticas. Estas están relacionadas con el concepto de identidad del profesor, la importancia de las relaciones, la noción de relevancia, y el papel central de las emociones.
Dieses Referat berichtet über die ersten Ergebnisse eines langfristigen Forschungsprojektes, basierend auf Erfahrungen von Lehrern in England, die in den Beruf einsteigen. In der ersten Phase der Studie (2003–2004) wurden Daten gesammelt mittels: 1) ausführlicher, persönlicher Gespräche mit 85 auszubildenden Lehrern aus ganz England; und 2) selbstauszufüllender Fragebögen, die von 4,790 auszubildenden Lehrern aus verschiedenen Ausbildungsrichtungen zurückgesendet wurden. Die Studie hatte das Ziel, die Berichte der auszubildenden Lehrer zu untersuchen hinsichtlich ihrer Motivation, eine Ausbildung anzufangen, ihrer Erwartungen vom Unterrichten und von der Ausbildung, sowie ihrer ersten Erfahrungen als auszubildende Lehrer. Eine Anzahl von allgemeinen Themen wurden in allen diesen Bereichen festgestellt und sind hier als Kernmerkmale des Ausbildungsverfahrens dargestellt. Diese beziehen sich auf das Konzept der Lehreridentität, auf die Rolle von Beziehungen, auf die Idee der Relevanz, sowie auf die zentrale Präsenz von Emotionen. 相似文献