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As a part of efforts to evaluate and monitor the increasing public investment in early childhood education, teachers are being asked to assess children's school readiness. In this study, preschool teachers and kindergarten teachers rated children's skills in three areas (kindergarten readiness, academic skills, and communication skills), and these ratings were compared with direct assessments of the children's skills. Ratings by both groups of teachers tended to be more highly related to basic skills, such as counting and number naming, than to abilities such as solving applied problems and using expressive and receptive vocabulary. Preschool teachers' ratings had a lower association with children's observed skills and abilities than kindergarten teachers' ratings. Ratings of children attending Head Start were systematically inflated, but this relationship was mediated to a significant extent by the teachers' levels of education. More educated teachers rated children in a manner consistent with the children's directly assessed skills. Implications of these findings for informing future efforts to assess school readiness by using teacher ratings are discussed. 相似文献
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Gary Skaggs 《Educational Measurement》2004,23(1):28-33
Research on psychometric methods is heavily dependent on software. The quality, availability, and documentation of such software are critical to the advancement of the field. In 2000, an ad hoc committee of NCME recommended that NCME adopt policies that promote greater availability and better documentation of software. This article follows the ad hoc committee's report by examining the use of software in four top-tiered journals in recent years. The results indicated that the most frequently cited programs were those written by the articles' authors. The documentation and availability for these programs are often not clear, particularly for software used for simulations. The use of proprietary software was not widespread in the four journals, but there is still room for concern in the future. This article recommends that NCME form a permanent committee to address software issues. 相似文献
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石峰:发展数字报业,传统媒体是基础
"十一五"期间是我国报业出版业深化改革加快发展的关键时期,为了迎接报业的挑战,抓住数字内容产业蓬勃发展的历史机遇,新闻出版总署提出大力发展数字报业的战略目标,并为此制订了专门的行动计划,即中国数字报业实验室计划.旨在全行业广泛联合相关的产业,共同推进我国报业面向未来的战略转型,进一步巩固和加强党的宣传舆论阵地,牢牢把握信息传播技术条件下,新闻宣传和传播市场的主导作用. 相似文献
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In this paper, we propose a new language model, namely, a dependency structure language model, for topic detection and tracking (TDT) to compensate for weakness of unigram and bigram language models. The dependency structure language model is based on the Chow expansion theory and the dependency parse tree generated by a linguistic parser. So, long-distance dependencies can be naturally captured by the dependency structure language model. We carried out extensive experiments to verify the proposed model on topic tracking and link detection in TDT. In both cases, the dependency structure language models perform better than strong baseline approaches. 相似文献
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Robert J. Jones Ph.D. Kenneth J. Gruber Ph.D. Gary D. Timbers Ph.D. 《Child abuse & neglect》1981,5(4):431-440
This study reports the results of extensive interviews with an intact sample of moderately delinquent adolescents concerning their sexual assault histories. Findings indicate a surprisingly high incidence of victimization among the females interviewed which, the authors suggest, may characterize the larger population of delinquent females. The behavioral-situational contexts of reported victimization experiences are examined for salient commonalities and the following composite rape scenerio can be cast from the data: An unsupervised, 14-year-old female, who has been consuming alcohol or marijuana, is sexually assaulted, following threat and/or force, to the point of penile-vaginal penetration, by an older male friend or acquaintance (who has also consumed alcohol or marijuana) in his home or vehicle or other place where she is inherently unprotected. Some comments are offered concerning the requirements of an effective technology of child rape prevention. 相似文献
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