Digital Module 16: Longitudinal Data Analysis     

Jeffrey R. Harring  Tessa L. Johnson 《Educational Measurement》2020,39(3):137-138

In this digital ITEMS module, Dr. Jeffrey Harring and Ms. Tessa Johnson introduce the linear mixed effects (LME) model as a flexible general framework for simultaneously modeling continuous repeated measures data with a scientifically defensible function that adequately summarizes both individual change as well as the average response. The module begins with a nontechnical overview of longitudinal data analyses drawing distinctions with cross-sectional analyses in terms of research questions to be addressed. Nuances of longitudinal designs, timing of measurements, and the real possibility of missing data are then discussed. The three interconnected components of the LME model—(1) a model for individual and mean response profiles, (2) a model to characterize the covariation among the time-specific residuals, and (3) a set of models that summarize the extent that individual coefficients vary—are discussed in the context of the set of activities comprising an analysis. Finally, they demonstrate how to estimate the linear mixed effects model within an open-source environment (R). The digital module contains sample R code, diagnostic quiz questions, hands-on activities in R, curated resources, and a glossary.  相似文献   

Digital Module 05: Diagnostic Measurement—The G‐DINA Framework https://ncme.elevate.commpartners.com     

Wenchao Ma  Jimmy de la Torre 《Educational Measurement》2019,38(2):114-115

In this ITEMS module, we introduce the generalized deterministic inputs, noisy “and” gate (G‐DINA) model, which is a general framework for specifying, estimating, and evaluating a wide variety of cognitive diagnosis models. The module contains a nontechnical introduction to diagnostic measurement, an introductory overview of the G‐DINA model, as well as common special cases, and a review of model‐data fit evaluation practices within this framework. We use the flexible GDINA R package, which is available for free within the R environment and provides a user‐friendly graphical interface in addition to the code‐driven layer. The digital module also contains videos of worked examples, solutions to data activity questions, curated resources, a glossary, and quizzes with diagnostic feedback.  相似文献   

物理模型与股票投资     

李勇英 《天水师范学院学报》2003,23(2):60-61

股票投资的方法很多，建立物理模型进行投资是一种简明有效的方法，使用金字塔模型和平衡理论对股票进行操作，能把握最佳投资机会。  相似文献   

<体育与健康课程标准>实施进程研究   总被引：9，自引：0，他引：9  

何元春  于晓东 《成都体育学院学报》2003,29(4):81-83

经过反复的调查和对文献资料的分析，初步提出：体育与健康课程模式的多元化，是新“课标”由目标理念向操作化进程的有效途径。课程模式多元化，要以单元为基础，构建模块组合；以新“课标”为母体，构建子项模式；以新“课标”为依据，完善结构体系；以模式为中介，超越课程模式。  相似文献   

Norm‐ and Criterion‐Referenced Student Growth     

D. Betebenner 《Educational Measurement》2009,28(4):42-51

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运动训练时间学研究现状与展望（综述）   总被引：3，自引：0，他引：3  

李波 《体育科研》2004,25(5):33-37

在收集整理了大量有关运动训练时间学及其它相关时间学研究资料的前提下,对运动训练时间学产生的时代背景及其发展、变化进行了分析。指出运动训练时间学研究的重要性及其必要性,并对目前研究中存在的主要问题及发展趋势提出了自己的观点。  相似文献   

谈中小学体育教师的继续教育     

魏威 《西安体育学院学报》2004,(Z1)

通过文献资料法、专家咨询法、逻辑分析法等,针对新一轮课程改革对中小学体育教育人才素质要求不断变化 的现状,首先分析了体育与健康课程的内涵,进而阐明了体育与健康课程的实施给教师培训部门带来的挑战;最后着重 从新课程体系的培养目标、培养模式、课程设置、质量保障体系等方面展开研讨,提出对策思路。  相似文献   

山东省中学生余暇体育活动的调查研究     

张永虎  王进吉 《安徽体育科技》2004,(Z1)

对山东省10所中学1800名学生进行了调研,从中学体育教学内容、时间、项目情趣、教学方法、课程设置入手,剖析了中学生参与余暇体育活动的现状、动机、行为、消费水平、个体因素等,并提出建设性意见,力求为中学体育教学改革、完善素质教育提供参考。  相似文献