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191.
Differences in developmental trajectories of physical violence, vandalism, theft, and alcohol-drug use from ages 10 to 15 were studied. For females and for males, three trajectories of theft and of alcohol-drug use increased from 10 years to 15 years, while only the high trajectory of vandalism increased from ten to 14. All trajectories of physical violence decreased. Children who engaged in the high trajectories of vandalism, theft, and alcohol-drug use had a high probability of also being high in physical violence. Compared to males, females were less likely to be on the high trajectory of physical violence, and their trajectories of other antisocial behaviors were less strongly associated with high levels of physical violence. The results suggest that physical violence during pre-adolescence and adolescence has a different developmental pattern than other forms of antisocial behavior, and that its relation to these other forms of antisocial behavior differs by sex.  相似文献   
192.
Using a cross-sectional design, the primary purpose of the present study was to examine developmental differences in mental toughness between specialized and invested Australian footballers. A secondary purpose was to examine the psychometric properties of the Australian football Mental Toughness Inventory (AfMTI; Gucciardi, Gordon, & Dimmock, 2009a) with a sample of youth footballers. Participants were 350 footballers aged between 13 and 18 (= 15.88; SD = 1.71); 144 (Mage = 14.06; SD = .89) and 206 (Mage = 17.02; SD = 1.06) footballers from the specialized and investment developmental stages, respectively. A confirmatory factor analysis of the AfMTI using AMOS did not reveal support for its psychometric structure; however, a revised version received support. A MANOVA revealed the presence of a significant difference between the two developmental groups, and follow-up ANOVA’s indicated that the desire success and sport awareness subscales contributed to multivariate effect. It appears that developmental differences should be considered in future theorizing on the development of mental toughness.  相似文献   
193.
To investigate maturational plasticity of fluid cognition systems, functional brain imaging was undertaken in healthy 8-19 year old participants while completing visuospatial relational reasoning problems similar to Raven's matrices and current elementary grade math textbooks. Analyses revealed that visuospatial relational reasoning across this developmental age range recruited activations in the superior parietal cortices most prominently, the dorsolateral prefrontal, occipital-temporal, and premotor/supplementary cortices, the basal ganglia, and insula. There were comparable activity volumes in left and right hemispheres for nearly all of these regions. Regression analyses indicated increasing activity predominantly in the superior parietal lobes with developmental age. In contrast, multiple anterior neural systems showed significantly less activity with age, including dorsolateral and ventrolateral prefrontal, paracentral, and insula cortices bilaterally, basal ganglia, and particularly large clusters in the midline anterior cingulate/medial frontal cortex, left middle cingulate/supplementary motor cortex, left insula-putamen, and left caudate. Findings suggest that neuromaturational changes associated with visuospatial relational reasoning shift from a more widespread fronto-cingulate-striatal pattern in childhood to predominant parieto-frontal activation pattern in late adolescence.  相似文献   
194.
绩效评价的若干问题   总被引:7,自引:0,他引:7  
通过对绩效的内涵、绩效评价标准的确定、评量指标体系的构建以及多样性评量指标的整合意义与方法等四个绩效评价的最基本问题进行反思 ,提出如下观点 :(1 )对绩效进行考量时必须同时考虑时间、方式和结果三个维度。 (2 )绩效评价标准的确定应先于具体评量指标的选择 ,且应保持一定的稳定性 ,不可随意增删 ;(3 )评量指标体系的构建应本着贵精不贵多、贵明确不贵模糊、贵敏感不贵迟钝 ,贵关键不贵空泛的原则进行 ;(4)多样性评量指标是否整合需根据具体的需要而定 ,整合时要考虑评量指标本身的权重差异以及不同评价者由于对标准尺度掌握的松紧不一和评判角度不同所带来的对最终评价结果的影响。  相似文献   
195.
中国儿童发展量表(3-6岁)是由张厚粲教授主持,北京师大和新疆师大等单位合作,参考国内外有关研究成果,结合我国特点编制而成。其内容包括语言、认知、社会认知和动作四个方面的11个项目。量表长度适中,内容形式多样,易于施测;具有较高的信度和效度,正式通过了专家鉴定。几年的试用实践证明本量表是一个可靠而有效的测验工具。  相似文献   
196.
Two children with an acquired aphasia were observed during the recovery process. In the spontaneous speech, paraphasias belonging to different categories, such as neologisms, verbal paraphasias, and literal paraphasias, were found. Especially with regard to neologisms the time of investigation was very important. In addition, one child with a phonemic jargon aphasia and one child with a fluent aphasia and empty speech were observed. These observations implicate a modification of the current clinical picture of childhood aphasia. Some aspects are discussed in relation to adult aphasia.  相似文献   
197.
Recovery of single word comprehension: CT-scan correlates   总被引:7,自引:0,他引:7  
9tory comprehension for single words, as measured by the BDAE Word Discrimination subtest, was studied longitudinally in a group of 37 aphasic patients. The majority of the patients had impaired performance at 1 month postonset, but recovery by Month 6 postonset was quite striking. Damage to Wernicke's area did not preclude recovery of single word comprehension to within the normal range. Only patients with very extensive left hemisphere lesions had incomplete recovery of single word comprehension.  相似文献   
198.
The effects of varying the motivational content of verbal rationales on children's compliance to a prohibition were investigated. Sixty-four 7- to 10-year-old children received an explanation that focused either on the consequences of their behavior for themselves or on the consequences of their behavior for the experimenter. The intensity of these explanations was manipulated verbally by varying the severity of the self- or other-oriented consequences. Preratings of the rationales by an independent sample of 42 children indicated that children's perceptions of the aversiveness of the rationales increased as a function of intensity. Intensity was a determinant of children's compliance but females were more likely to increase in resistance to deviation as a function of intensity than males. Children who received other-oriented rationales performed a greater amount of work and were less likely to show decrements in working over time than subjects who received self-oriented rationales. The results were explained in terms of a model of reasoning effects in which the kind and amount of motivation aroused are two separable determinants of children's compliance.  相似文献   
199.
Language measures of receptive and expressive vocabulary, story telling, and immediate verbal memory, as well as two perceptual tests, were administered to a group of developmentally disabled children, and three groups of normal children, one matched for chronological age, one for mean length of utterance, and one for performance on one of the perceptual tests. When diagnostic subgroups of “autism,” “childhood schizophrenia,” and “other severe disturbance” were formed using standard diagnostic tools, no language differences were found between diagnostic subgroups. When compared with the normal control groups, many of the language skills of the entire group of disabled children, and of the autistic children alone, were rather evenly delayed, showing only a relative sparing of the naming function, and a relative deficit on immediate verbal memory. Furthermore, a high correlation was found in a small subsample between the difficulty levels of morphemes in the disabled children and those reported for young normal children. Experienced special-education and early-childhood teachers could not discriminate the stories of the disabled children from those of young normal children. Analysis of the disabled children's error strategies, however, revealed features of their language not found in normal children's language: (1) extreme perseveration in test answers and stories, (2) attention to minor features of test stimuli, and (3) failure to adopt alternate, flexible communicative strategies. We conclude that the language acquisition of the developmentally disabled children is delayed but not deviant in its semantic and syntactic competence, and that current diagnostic practice does not differentiate linguistically distinct subgroups. We further argue that where developmentally disabled children do exhibit aberrant features of language, such deviance parallels similar features in other cognitive skills, and is not unique to language.  相似文献   
200.
Hemispheric short-term memory was studied by projecting complex random forms that varied in their verbal association strength to the left and right hemispheres. Male and female subjects responded same or different to a centrally presented memory test stimulus which occurred 0, 5, 10, or 20 sec after the target item. Reaction time for both response judgments was significantly shorter for right-hemisphere presentations over all memory intervals. For both performance measures, response judgment interacted with the length of memory interval and the verbal association value of the stimulus items. No hemispheric differences were observed as a function of subject sex. Hemispheric memory for complex forms appears primarily dependent upon task processing demands rather than stimulus factors when response time is used to measure recognition under tightly controlled conditions.  相似文献   
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