网络舆情衍进指数构建与实证分析   总被引：1，自引：0，他引：1  

黄微  朱镇远  许烨婧  孙悦 《图书情报工作》2019,63(20):26-33

[目的/意义]提出和构建网络舆情衍进指数，以描述网络舆情演化过程中常衍生出新的子话题的现象，对于舆情预警、预测具有重要的理论及实践意义。[方法/过程]以文本聚类结果和文本聚类有效性为依据，提出网络舆情衍进的判别标准和舆情衍进指数的构建过程，并以"教科书老赖"这一事件作为样本数据进行实证分析。[结果/结论]所构建的舆情衍进速率指数可以用于描述舆情衍进。在突发期阶段话题舆情衍进指数最高，此后逐渐下降，这一阶段的舆情衍进最为剧烈，子话题的出现呈现爆发性增长；舆情衍进指数在舆情蔓延期内出现阶梯式下降，此后保持为负值，舆情的子话题开始逐渐减少，舆情内容本身由发散转为收敛；进入消散期后，子话题数量趋于稳定。作为舆情衍进速率的测度和舆情衍进的判别方式，舆情衍进指数为舆情监管和舆情预警提供了全新的角度。  相似文献   

Effectiveness of a school-based intervention to prevent child sexual abuse—Evaluation of the German IGEL program     

《Child abuse & neglect》2018

BackgroundChild sexual abuse (CSA) is a problem with severe consequences for victimized children. A variety of interventions have been developed and implemented over the last decades to prevent CSA. However, most of them have not been systematically evaluated to determine their effectiveness. The IGEL program is a school-based intervention to prevent CSA in third-grade primary school children in Germany.MethodsThis study was conducted using a quasi-experimental design, in which almost 300 children and their parents from eight intervention and four control schools were surveyed three times (pretest, posttest, 3 months later). In order to measure outcomes, a questionnaire was developed based on validated instruments to assess the knowledge, courses of action and self-protective skills of the children. Furthermore, increased anxiety and generalized touch aversion were examined as potentially harmful side effects of the program.ResultsThe results clearly demonstrate increased CSA-related knowledge and courses of action in children from the intervention group compared to the control children. These effects were medium-sized and sustained for at least three months after the last session. No meaningful negative side effects were detected in the evaluation for either the children or parents.ConclusionThe outcome evaluation indicates that the IGEL program is an effective intervention in terms of knowledge about CSA and known courses of action, and may therefore contribute to the prevention of CSA in primary schools. Despite this positive core finding of the intermediate outcomes, some adaptations of the program to children with different cultural backgrounds were made prior to further dissemination.  相似文献   

Towards a Framework for Evaluating the Research Performance of Chinese Double First-Class Universities     

XU Changqing 《Frontiers of Education in China》2020,15(3):369

The study focuses on the research performance of Double First-Class (DFC) universities in China. A theoretical framework based on economic theory and the Analytic Hierarchy Process (AHP) method for a novel evaluation model is proposed. The model is performed on a sample of 41 participant DFC universities in China. Using data collected from these universities, it was found that there is no consistency between performance ranking, input ranking, and output ranking, with the best ranked universities far from the most efficient. These findings provide empirical evidence of DFC universities’ research performance situation and suggest strategies that the government can use to propel their sustainable development.  相似文献   

不同冷季型草坪草生长前期形态和生理指标的比较     

张远兵  刘爱荣  张飞 《安徽科技学院学报》2005,19(6):27-31

对几个不同冷季型草坪草品种苗期形态指标和生理指标观察和比较.结果表明:在表观特征上,黑麦草"绅士"、高羊茅"自豪"、和"千年盛世"等三种冷季型草坪草品种表现较好,具有良好的观赏价值;在生理指标上,草地早熟禾的脯氨酸含量、可溶性糖含量、丙二醛含量和根系活力都比其它几个品种高,但其外观品质和观赏价值最差.综合质量评价表明:"自豪"的综合效果最好,生长前期最适宜于本地区生长.  相似文献   

企业绩效评价指标体系中存在的问题及改进建议   总被引：5，自引：0，他引：5  

彭晓洁 《商丘职业技术学院学报》2006,5(4):24-25

企业绩效评价就是按照企业目标设计相应的评价指标体系,对企业一定经营期间的经营业绩做出客观、公正和准确的综合判断。通过分析我国现行企业绩效评价指标体系中存在的问题,提出了相应的改进建议。  相似文献   

On the value of data-based decision making in education: The evidence from six intervention studies     

《Studies in Educational Evaluation》2021

Although some studies have investigated the impact of data-based decision making (DBDM) on student achievement, the overall findings are not straightforward, because of the studies’ methodological flaws and their mixed results. This article first presents a breakdown of the DBDM concept as applied in the Dutch context. Next, it explains the theoretical foundations of DBDM in feedback and goal-setting theory and then discusses various factors influencing DBDM effectiveness. The results of six Dutch DBDM interventions with an explicit focus on student achievement effects of DBDM and with strong research designs are then presented. Significant positive effects on student performance as measured by means of standardized tests are reported for four interventions. The interpretation of student progress data from student monitoring systems does not seem to be problematic for teachers, if they are deliberately trained for it, but teachers do find it difficult to translate student progress data into tailor-made instruction.  相似文献   

The conundrum research-practice partnerships face with system variability     

《Studies in Educational Evaluation》2021

Variability is inherent in educational phenomena. Research-practice approaches face a conundrum of how to deal with variability. It can be positive, providing evidence for effective innovation in local sites, but interferes with a goal of consistent effectiveness. Our methods for capitalizing on variation have become sophisticated, and solutions to the unwanted facets of variability are emerging. A working model for how to think about variability and setting expectations about the tolerance levels is proposed.  相似文献   

基于核心素养的初中英语作业设计与评价研究     

高晓静 《天津教育》2021,(8):87-88

作为初中英语教学中的关键组成部分,作业的设计和评价至关重要,合理化的作业设计能够起到良好的指导作用,对于巩固学生们的学习成效有着正面的影响。本文结合当前初中英语作业设计现状,重点分析核心素养视角下初中英语作业设计和评价的路径。  相似文献   

基础教育质量指数构建的模式与途径     

张佳慧  李峰  辛涛 《华东师范大学学报(教育科学版)》2021,(4):30-41

基础教育质量指数的构建可以为教育质量提供科学、有效的评价方法。本文首先回顾了对教育指标体系和教育指数的相关探索,总结了基础教育质量指数构建的模式,为构建我国基础教育质量指数提供参考。结合我国提升基础教育质量的目标和新时代教育评价机制改革的趋势对基础教育质量指数的构建提出的具体要求,本文提出了基础教育质量指数构建的可能途径:以CIPP框架为出发点初步构建并不断完善指标体系;基于效度证据选择投入、过程和结果指标;建立多方参与的综合评价系统;基于质量标准科学地使用和解释指数;在评价质量水平时兼顾公平。同时,为落实我国基础教育质量指数的构建,我们认为,还需要一系列教育实证研究的支撑,未来研究应关注数据链接和填补、质量指标的本土化效度验证、不同水平指数的效度验证、“互联网+”时代的指数构建、综合指数合成方法的比较、结合质量标准的指数使用案例,以及融合质量水平与公平的指数构建等研究主题。  相似文献   

远程教育服务的质量标准与评价     

王健 《继续教育研究》2021,(1):28-32

随着互联网时代的到来,各类在线课程、远程教育服务得到了广泛应用。2020年新型冠状病毒肺炎疫情在全球的突发,使得远程在线教学成为学习和教育培训的主流方式,受到社会各界的关注。建立远程教育服务的质量标准和开展质量评价,就显得尤为重要和必要。本文对远程教育服务质量的相关概念、质量标准内容、如何构建质量评价指标体系、开展质量评价的程序等四个方面进行了讨论,最后对于远程教育机构如何提高服务质量、提升人才培养水平,提出了几点建议。  相似文献