Discrete Choice Modeling in Education: An Innovative Method to Assess Teaching Practices

Self‐reported measures are an easy, time‐efficient, and low‐cost way to collect research data compared to other assessment methods. They are, however, characterized by several limitations regarding the quality and the clarity of the data they produce, especially when they are implemented in education. The main purpose of the current study was to use a method called discrete choice modeling (DCM) in education, in order to develop a self‐reported instrument that will reduce the bias for socially desirable responses and to assess teachers’ practices in physical activity. DCM method has the ability to overcome the respondents’ tendency to answer in a socially desirable way. A nationally representative sample of 531 Greek early educators participated in this study and were administered a self‐assessment questionnaire based on DCM. Results showed that the DCM based newly developed instrument manages to assess effectively educators’ practices and provided evidence of the applicability of the method in education. Further implications and future recommendations regarding the effective application of DCM in education are discussed.     

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

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.     

CBA联赛中三人制与二人制裁判错漏判的比较

为了使我国篮球运动的发展和国际接轨，促使篮球运动技术、战术水平的正常发挥，保证比赛的健康发展，2000年我国男子CBA比赛中首次实行了三人制裁判。本文通过对我国CBA比赛几个赛季几十场比赛的两种裁判制的全面比较分析，为在全国推广和提高我国裁判水平提供理论和实践依据。     

影响三级跳远成绩的若干因素

通过阅读、整理国内外有关三级跳远方面的献资料，阐明三级跳远中助跑速度、起跳技术、三跳比例、力量以及平衡对三级跳远成绩的影响，为三级跳远的研究提供参考。     

对我国宏观经济地带及综合经济区划分的思考

从科学发展观的内涵和全面建设小康社会的目标来看,我国“七五”确定的三大宏观经济地带和“九五”划分的7大综合经济区已难以适应新形势下统筹区域发展的要求。文章在介绍了“完整的区域经济体系”的基础上,提出了我国新三大宏观经济地带及10大综合经济区的划分方案,并给出了新三大宏观经济地带的发展对策。     

对我国优秀男子三级跳远运动员跨步跳起跳三时相运动学参数的研究

运用定点高速录像(250帧/ s)的方法,对我高优秀男子三级跳远运动员跨步跳起跳过程中三时相(着地、缓冲、蹬伸)运动学参数进行了定量分析.分析结果表明:跨步跳起跳过程中,着地角、起跳幅度、着地时重心高度、离地时重心高度、离地时两大腿夹角对跨步跳离地时水平速度影响较大,是造成跨步跳阶段水平速度损失大的主要原因.我国优秀男子三级跳远运动员跨步跳起跳过程中,过分屈膝,蹬伸迟、不充分,摆动动作消极,不能有效地提高腾起初速度,提高起跳效果.     

金属焊接质量的红外成像检测

介绍一种基于红外成像技术的金属焊接质量的无损检测方法.首先介绍了检测的基本原理和检测装置,然后详细给出了以边缘检测为基础的缺陷检测方法及检测结果.最后通过比较说明,利用红外成像技术对金属焊接质量进行无损检测是一种很有效的方法.     

对乒乓球前三板技术训练的分析

通过对乒乓球前三板技术的分析与探讨,提出了对提高乒乓球前三板技术的训练指导思想和方法.