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151.
No longitudinal information about bullying and peer harassment among Canadian children currently exists. In the present study, the author examined the stability of bullying and harassment. The sample consisted of two cohorts of children aged 10-11 years (n=2798) and 12-13 years (n=1946) drawn from the Canadian National Longitudinal Survey of Children and Youth, which is a stratified random sample of households in Canada. The author analyzed children's reports of bullying and harassment from 1994 to 2001 using cross-sectional time-series analyses. The results show that children who were not bullied or harassed in one cycle were unlikely to report being bullied or harassed at a subsequent cycle. About half of children who reported being bullied or harassed in a previous cycle also reported being bullied or harassed in a subsequent cycle. The author concludes that some children may be resilient, whereas others are vulnerable to ongoing bullying and harassment from their peers.  相似文献   
152.
The main objective of this study was to investigate normal weight and overweight preschool children's ability to understand conceptualizations of body image and their association with parental perceptions of their child's body. One hundred and forty-four children aged 3-5 years were interviewed (68 girls and 76 boys) regarding their body image and their satisfaction with such. Parents completed a questionnaire that probed socio-demographic characteristics as well as their perceptions of their child's body image. Results showed that (1) children's misperceptions corresponded to those held by their parents. Specifically, overweight children and their parents underestimated the child's body size. (2) Gender differences in body dissatisfaction were consistently observed and were similar to those seen in adolescents and adults. It was determined that children's inaccuracies were not a result of developmental limits, that is, the participants' inability to understand the concepts measured.  相似文献   
153.
Four studies demonstrate that the affiliative responding that is typically encouraged by mimicry can be manifested in conformity to shared gender and racial stereotypes. In Studies 1 and 2, mimicry by a confederate led participants to perform in accordance with stereotypes about their race and gender on a math task. Studies 3 and 4 tested the boundary conditions of mimicry's influence: in Study 3, mimicry elicited stereotype-consistent math performance only among participants who believed in stereotypes about their group that could drive others' expectancies. Study 4 established that the mimicry must occur in the context of affiliation for it to elicit stereotype-consistent behavior, highlighting the important moderating role of affiliation motivation in this phenomenon. In sum, these findings suggest that mimicked individuals are more conforming to the stereotyped expectancies that they believe others hold for them, which suggests not only a potential negative consequence of mimicry but also a subtle manner through which stereotypes may be perpetuated.  相似文献   
154.
Dissociable prototype learning systems have been demonstrated behaviorally and with neuroimaging in younger adults as well as with patient populations. In A/not-A (AN) prototype learning, participants are shown members of category A during training, and during test are asked to decide whether novel items are in category A or are not in category A. Research suggests that AN learning is mediated by a perceptual learning system. In A/B (AB) prototype learning, participants are shown members of category A and B during training, and during test are asked to decide whether novel items are in category A or category B. In contrast to AN, research suggests that AB learning is mediated by a declarative memory system. The current study examined the effects of normal aging on AN and AB prototype learning. We observed an age-related deficit in AB learning, but an age-related advantage in AN learning. Computational modeling supports one possible interpretation based on narrower selective attentional focus in older adults in the AB task and broader selective attention in the AN task. Neuropsychological testing in older participants suggested that executive functioning and attentional control were associated with better performance in both tasks. However, nonverbal memory was associated with better AN performance, while visual attention was associated with worse AB performance. The results support an interactive memory systems approach and suggest that age-related declines in one memory system can lead to deficits in some tasks, but to enhanced performance in others.  相似文献   
155.
Self-recognition by 86 children (14-52months) was assessed using the mirror mark test in two different social contexts. In the classic mirror task condition, only the child was marked prior to mirror exposure (Classic condition). In the social norm condition, the child, experimenter, and accompanying parent were marked prior to the child's mirror exposure (Norm condition). Results indicate that in both conditions children pass the test in comparable proportion, with the same increase as a function of age. However, in the Norm condition, children displayed significantly more hesitation while removing the mark, often touching it without removing it or, if so, promptly putting the mark back onto their forehead. In the Classic condition, only one child showed such hesitation. These results suggest that from the outset, mirror self-recognition can refer to social awareness. This link is interpreted as the trademark of human self-consciousness, a deeply rooted "looking glass" self-awareness.  相似文献   
156.
This study examined interpersonal physical and sexual violence and its association with desires and plans to migrate to the USA among 500 alternative high school students, aged 14?C17?years, from Guanajuato, Mexico. Two thirds of the youths had ever experienced interpersonal violence, the most common form being physical fights. More youths, and more boys relative to girls, reported wanting to migrate than planning to migrate. Although those who had experienced interpersonal violence were not more likely to want to migrate to the USA, their odds of planning to migrate were 44% greater. Gender did not moderate the effect of interpersonal violence.  相似文献   
157.
Although there has been considerable interest in the effects of errors on subsequent performance, relatively few studies have considered the effects of non-error events that contain some performance-relevant information, such as correct performance on critical trials. In the present article, we propose and assess a hypothesis of performance reactivity. In support of this hypothesis, we provide evidence of performance decrements following both incorrect and correct responses but not following performance-irrelevant events. More specifically, in a continuous response task (Sustained Attention to Response Task), we (1) replicate previous findings that errors of commission on rare NOGO trials produce decrements in subsequent performance, and (2) observe that correct withholds to NOGO trials produce decrements in subsequent accuracy relative to task-irrelevant tones. These results corroborate a hypothesis that some error-related effects on subsequent performance are not unique, but are instead a particularly salient version of a more general performance-reactivity effect.  相似文献   
158.
Traumatic childhood experiences have been found to predict later internalizing problems. This prospective longitudinal study investigated whether repeated and intentional harm doing by peers (peer victimization) in childhood predicts internalizing symptoms in early adolescence. 3,692 children from the Avon Longitudinal Study of Parents and Children (ALSPAC), as well as their mothers and teachers, reported on bullying in childhood (7–10 years) and internalizing problems in early adolescence (11–14 years). Controlling for prior psychopathology, family adversity, gender and IQ, being a victim of bullying was associated with higher overall scores, as well as increased odds of scoring in the severe range (>90th percentile) for emotional and depression symptoms. Victims were also more likely to show persistent depression symptoms over a 2-year period. These associations were found independent of whether mothers, teachers or the children reported on bullying. It is concluded that peer victimization in childhood is a precursor of both short-lived and persistent internalizing symptoms, underlining the importance of environmental factors such as peer relationships in the etiology of internalizing problems.  相似文献   
159.
This pilot study examined changes in parenting skills and child behavior following participation in an online positive parenting skills program designed for young children with traumatic brain injury (TBI). Thirty-seven families with a child between 3 and 9 years of age who sustained a moderate to severe TBI were randomly assigned to one of two interventions: online parenting skills training (n = 20) or access to Internet resources on managing brain injury (n = 17). Parent–child interaction observations and parent ratings of child behavior were collected pre- and post-treatment. Generalized estimating equations and mixed models were used to examine changes in parenting skills and child behavior problems as well as the moderating role of family income on treatment response. Participants in the parenting skills group displayed significant improvements in observed positive parenting skills relative to participants in the Internet resource group. Income moderated improvements in parent ratings of child behavior, with participants in the low-income parenting skills group and high-income Internet resource group reporting the greatest improvements in behavior. This is the first randomized controlled trial examining online parenting skills training for families of young children with TBI. Improvements in positive parenting skills and child behavior support the utility of this intervention, particularly for families from lower socioeconomic backgrounds.  相似文献   
160.
This study investigates the self-reported levels of occupational burnout among 1,094 U.S. Air Force drone operators stationed within the borders of the United States who are supporting a wide range of around-the-clock military surveillance and weapons strike missions across the globe. Data were gathered from a Web-based survey of demographic items and the Maslach Burnout Inventory assessing the facets of occupational burnout (exhaustion, cynicism, and professional efficacy). The overall survey response rate was 49%. Approximately 20% reported high levels of exhaustion, and 11% reported high levels of cynicism, but only 3% reported low levels of professional efficacy. Predictors of exhaustion, as well as between group differences, were identified along with recommendations for performance improvement and mitigating risks to safety.  相似文献   
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