Comparing cumulative index and factor analytic approaches to measuring maltreatment in the National Longitudinal Study of Adolescent to Adult Health     

《Child abuse & neglect》2019

Child maltreatment is a complex and multifaceted construct in need of advanced statistical techniques to improve its measurement. The current study compared the predictive utility of a cumulative index to a factor analytic approach for constructing a measure of maltreatment. Data were from Waves III and IV of the National Longitudinal Study of Adolescent to Adult Health (Wave III: n = 14,800; Wave IV: n = 12,288). As adults, participants retrospectively reported on their childhood experiences of physical abuse, sexual abuse, emotional abuse, physical neglect, supervisory neglect, and social services investigations. Both the cumulative index and a two-factor solution showed evidence of convergent validity, predicting lifetime incidence of homelessness, being paid for sex, and various measures of running away or living apart from biological parents, and prospectively predicting depression, substance use, and criminal behavior. The latent variables, derived from a factor analytic approach, had greater explanatory power for many outcomes compared to the cumulative index, even when controlling for sociodemographic variables. Results suggest that factor analysis is a better methodology than a cumulative index for measuring maltreatment in large datasets when explanatory power for external outcomes is of greatest concern.  相似文献   

全民阅读时代我国公共图书馆建设区域分布态势研究——基于空间计量模型的实证分析     

王志刚  李阳冉 《图书馆理论与实践》2022,(1)

文章基于2010—2018年中国31个省(未包括香港、澳门特别行政区和台湾地区)的面板数据进行探索性分析,并构建空间计量模型以检验公共图书馆机构数、藏书量以及人均占有量在空间分布上存在明显差异。最后,在"全民阅读"国家发展战略指导下,根据我国公共图书馆的空间分布特征,建议从四种维度创设新型公共图书馆。  相似文献   

基于Web2.0的信息有序结构及其测度研究     

刘记 《图书情报知识》2008,(3):38-41

有序结构在Web2.0中有着新的表现形式,它包含了由他组织过程所生成的静态有序结构以及由自组织过程所生成的动态有序结构两种类型,这些结构的表现形式都是由其对应的控制规则所决定的。一种结构的有序程度,是以用户体验的感受程度为标准的。通过对已有的可用的有序性测度方法的比较分析,笔者指出了其各自的适应范围,并阐述了作为有序度测度发展趋势的用户体验测试方法。  相似文献   

英语不定冠词用法浅析     

何兰 《贵州教育学院学报》2007,23(3):89-91

英语不定冠词在英语中使用率很高,英语名词中的可数和不可数特点使中国的英语初学者难以掌握不定冠词的用法。英语的不可数名词不能冠以不定冠词,但当不可数名词受到形容词或介词短语的修饰或限定时却变成可数名词,因而可以受到不定冠词的修饰,表示某种个别的或特殊的情况。  相似文献   

Low-intensity electrical muscle stimulation induces significant increases in muscle strength and cardiorespiratory fitness     

Toshiaki Miyamoto  Hiroyuki Kamada  Akira Tamaki  Toshio Moritani 《European Journal of Sport Science》2016,16(8):1104-1110

The aim of this study was to investigate the effect of low-intensity exercise training using belt electrode skeletal muscle electrical stimulation on muscle strength and cardiorespiratory fitness in healthy subjects. Nineteen healthy subjects were allocated into control or intervention groups; in both groups the participants kept regular physical activity while the intervention group underwent 30 min B-SES training at 3–4 METs for four weeks. Knee extensor muscle strength and cardiorespiratory endurance during incremental exercise test were measured at baseline and after four weeks for all participants. The relative change of knee extensor muscle strength in the intervention group was significantly higher than control group (p?p?相似文献   

带电粒子在磁场中的运动和能量     

刘益民 《青海师专学报》2001,21(6):20-23

研究了带电粒子分别在均匀磁场、均匀变化磁场中的运动和能量。  相似文献   

阅读能力的内涵与测试     

施安全  金春伟 《齐齐哈尔师范高等专科学校学报》2002,21(1):86-89

阅读是获取语言知识直接，最有效的方法，阅读能力则是衡量掌握语言综合能力的一项重要标志，对于英语教师和测试工作来说，理解阅读能力的内涵及其与测试之间的关系，科学地，有效地测试学习的英语阅读能力，对于提高课堂教学的效率和学习的兴趣，公平，客观地衡量，检测教学效果是非常重要的。  相似文献   

利用工控组态软件创建电气控制线路动态演示教案的方法     

李敏涛 《温州职业技术学院学报》2007,7(3):23-26

利用工控组态软件创建电气控制线路的原理图,模拟动态演示教案,不但可以直观地表述控制原理,还可以利用工控组态中的编程功能设置故障,使学生能尽快地理解控制线路原理,掌握故障分析和排除的能力。  相似文献   

Is students’ energy literacy related to their university’s position in a sustainability ranking?     

D. R. E. Cotton  J. Winter  W. Miller  L. Dalla Valle 《Environmental Education Research》2018,24(11):1611-1626

Abstract

University rankings are increasingly important internationally, and in the UK include a sustainability ‘Green League’. However, there is little evidence about experiences of studying in ‘sustainable universities’. We report an empirical study at five universities in varied positions in the Green League, exploring students’ energy literacy, environmental attitudes and perceptions of their institution’s energy-saving efforts. Although the link to energy literacy is not clear, findings suggest that there are significant differences between students’ environmental attitudes at universities placed at different points in the league. In addition, students at higher ranked universities are more positive about their university’s energy-saving efforts, suggesting that these institutions may exhibit more overt manifestations of sustainability. This is important since students report being more likely to choose energy-conservation behaviours if there is visible representation of energy use. The study is the first to attempt a comparison between universities at different positions in a sustainability ranking.  相似文献   

浅谈无功就地补偿     

赵彦婷  崔好军 《安阳师范学院学报》2002,(2):100-101

分析了就地补偿原理，介绍了补偿容量的选择方法，阐述了就地补偿的效益及其应用场合。  相似文献