A quasi-experimental research on the educational value of performance assessment

The purpose of this study is to demonstrate that performance assessment increases educational value in teachinglearning activities using a quasi-experimental research design. In this research, the three measurement criteria of educational value are suggested as ‘improvement & advancement,’ ‘sincerity & enthusiasm,’ and ‘individuality & wholeness.’ A pre-test was administered to 4 classes (156 students) in 7th grade. Classes were divided into an experimental group (2 classes, 79 students) and a control group (2 classes, 77 students), according to the pre-test results. Only the experimental group was involved in the performance assessment for 9 weeks. The results of this study show that performance assessment has a positive effect on the educational value of teaching-learning activities in schools.     

A large-scale test of the relationship between procrastination and performance using learning analytics

Abstract

Many studies have found a relationship between students’ self-reported procrastination and their grades. Few studies have used learning analytic data as a behavioural measure of procrastination in order to predict performance, and there is no systematic research on how this relationship may differ across assessments or disciplines. In this study we analyse nine years’ worth of institutional electronic submission records, a total of 73,608 assignment submissions, to examine the relationship between submission time and grades across assignments, students, courses, and disciplines in higher education. A significant negative relationship was found overall, with students who submitted closer to the deadline obtaining lower grades, however the size of the relationship was negligible, accounting for less than 1% of the variance in grades. The relationship varied significantly depending on student, assignment, course and discipline.     

论琵琶右手演奏系统基本训练--快速弹挑及其弦序变换

快速是琵琶演奏中不可缺少的演奏技巧,它体现着一定程度的演奏水平,快速的演奏技巧对于我们完满的表现音乐具有重要的作用,主要从右手弹挑及弦序变换的要领来阐述快速演奏技巧训练的基本方法。     

音乐表演中的内心听觉

内心音乐听觉是音乐活动中的一种心理现象。内心音乐听觉与人的音乐知识经验的积累、对音乐感性体验的质量以及人的音乐审美情感都有着直接、内在的联系,是人在音乐表演活动中逐步培养建立起来的,是音乐表演活动中必须具备的心理基础和能力。内心音乐听觉发展水平的高低,直接影响着音乐表演等音乐表演活动的质量以及表演灵感的产生。内心音乐听觉在音乐表演中起着至关重要的作用。本文拟对内心音乐听觉这一心理学现象进行剖析,在此基础上提高内心音乐听觉能力。     

动态评估及其在特殊教育中的应用

动态评估是一种新型的评估方式,把它应用到特殊教育中也是近些年才兴起来的。文章对动态评估的概念和理论基础进行简单的介绍,然后分析了动态评估对特殊教育的价值意义以及动态评估在特殊教育应用过程中所产生的问题,并提出了改进建议。     

汉英句式的动态转换

本文以“功能对等”翻译理论为依据,比较了汉英句式表达上的差异,如意合与形合,句首开放与句尾开放,话题句与主谓句等,认为翻译应重在以语义为基础的动态转换。     

对人工挖孔桩扩大头直径尺寸及经济性的分析

扩头桩比不扩头桩承载力大，扩头桩比不扩头桩节省造价，并推导了扩大头直径的简捷计算公式．     

弹性有限长度杆在轴向应力波传播和反射过程中的屈曲

讨论弹性有限长度杆端部受冲击载荷作用，在轴向应为波传播和反射过程中的动态屈曲问题．利用扰动方程的解、端部支承条件和应力波反射前后波阵面相容条件得到了动态屈曲的分叉条件，临界载荷和屈曲模态．数值结果表明：临界载荷有多个分支且随时间增加而降低；由于应力波在端部的反射，使临界载荷进一步下降．这个结果就解释了实验中的一些现象．     

渗铝包子桶组织结构和性能研究

研究了渗铝包子桶的组织结构及其性能。热浸渗铝分为两层镀铝层和渗铝层，对其性能超决定性作用的是渗铝层。同未渗铝的其它钢种相比，具有优良的耐腐蚀抗高温氧化、抗硫蚀等性能。