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

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.     

高水平射击运动员心理选材指标的研究

本文通过与射击运动紧密相关的五项心理指标：简单反应时、肩臂动作稳定性、手指本体感、智力、个性等的分析讨论，拟从高水平健将级运动员身上明确其成功潜在的心理因素，服务于运动员的科学选材。     

过度运动对大鼠海马脑源性神经营养因子的影响

观察过度运动对海马神经元脑源性神经营养因子(BDNF)的影响,探讨过度运动导致的海马神经元形态改变与BDNF的关系.大鼠6周递增负荷游泳运动后取海马制作石蜡切片,采用SABC免疫组织化学染色方法观察BDNF的变化.结果发现:过度运动后大鼠海马发生形态变化,发生结构变化的神经元的BDNF表达增加.     

体外反搏对运动员血流动力学影响的研究

１２名游泳运动员，配对后随机分成实验组和对照组，实验组每人进行２周共１０次体外反搏，于反搏前、反搏后即刻和２周后测定血流动力学指标，同时对与之配对的对照组队员进行测定。结果表明：体外反搏后即刻心输出量增加，左心室有效泵力提高，体循环外周阻力下降，微循环状态改善；进行两周反搏后的第二天，上述良好变化继续存在，而对照组各项指标前后变化不大，提示体外反搏对提高运动员心功能，改善血循环状况从而增加重要器官的血液供应，加速代谢产物的排泄方面有良好的作用。     

网络链接分析研究进展

本文对网络链接分析研究的进展情况作了较为全面、详细的介绍，并分析了目前网络链接分析研究中存在的问题。     

北疆地区沥青混凝土路面平整度施工措施

本文通过对影响平整度的各种因素分析，提出提高路面平整度的几点措施，以保证平整度指标完成的经济、合理。     

贵阳市乌当区旅游资源开发战略

乌当区旅游资源丰富 ,品种多样 ,但开发中存在不利因素 ,如环境污染严重 ,资金短缺等 ,针对当前存在的问题 ,乌当区需实施可持续发展战略 ,政府主导战略和品牌战略     

关于事业单位内部会计控制制度的探讨

由于会计内部控制既关系到整个单位财产物资的安全完整,又关系到会计系统对单位经济活动反映的正确性和可靠性,因此建立一整套适合内部管理的会计系统控制制度,对于改善事业单位内部会计控制现状,保证会计信息质量的探讨和研究是非常有现实意义的,在有效运行的实际工作中也就显得尤为重要。     

英国工业革命期间的社会立法

在英国步入“福利国家”的历史进程中,各项社会立法的提出、确立、不断完善是其主要途径之一。其中,在英国工业革命期间的几项社会立法无疑处于这一社会立法轨迹中的起始阶段,有其渊源关系。其他位和作用应予以肯定。     

Lecturers on teaching within the ‘supercomplexity’ of Higher Education

While a vast literature exists on students and their learning, work on lecturers and their teaching continues to lag some way behind. This paper explores the notion that the complexity of Higher Education (HE) today significantly impacts upon what goes on in the classroom through a two-tiered study. Semi-structured interviews were conducted to explore lecturers’ perceptions and experiences of teaching a specific module. Interviewees raised issues pertaining to the wider departmental, institutional and socio-political context. Consequently, focus groups were run with key people in the University to explore their perceptions of teaching and learning within the current HE climate. The findings suggest that lecturers perceive numerous external factors to impinge upon their teaching and attempt to militate against these in various ways in order to achieve ongoing enhancement of learning for students.