SP口头反馈对医学生OSCE成绩影响初探

方法:将考生随机分为两组,实验组先进入有SP反馈的长站,再进入没有SP反馈的短站;时照组先进没有SP反馈的短站,后进入有SP反馈的长站.同时使用问卷调查学生对SP反馈的正确性和帮助大小的看法.结果:对照组和实验组的SP短站成绩差异无显著性,第一SP长站和第二SP长站间的成绩差异有显著性.问卷调查结果显示,90%的学生积极评价SP反馈.结论:SP反馈有助于提高相同结构和相同任务站点的成绩,但对于不同结构不同任务站点的成绩影响还需要进行更严格的设计的研究.     

基于Apriori改进算法的局部反馈查询扩展

提出面向查询扩展的Apriori改进算法,采用三种剪枝策略,极大提高挖掘效率;针对现有查询扩展存在的缺陷,提出基于Apriori改进算法的局部反馈查询扩展算法,该算法用Apriori改进算法对前列初检文档进行词间关联规则挖掘,提取含有原查询词的词间关联规则,构造规则库,从库中提取扩展词,实现查询扩展。实验结果表明该算法能够提高信息检索性能,与现有算法比较,在相同查全率水平级下其平均查准率有了明显提高。     

关于新课程中对数学思维活动的调控

利用系统论的观点,通过若干实际案例,从数学思维指向性和策略性两方面对一些常见的数学思维活动实施了调控。     

An Overall Study on Automated Writing Evaluation

Automated Writing Evaluation (AWE) program is designed to provide instant scores based on automated writing scor?ing engine along with diagnostic feedback. Five main AWE programs are introduced, four i...     

The Usefulness of Dictation in ELT Classrooms

Dictation plays an important role in teaching, learning and testing. But different people have different views about its functions. This paper mainly talks about its advantages—improving students’all-r...     

用于被动力/力矩再现的新型磁流变液阻尼器

研制了一种用于被动力/力矩再现的新型磁流变液阻尼器,该阻尼器能够在磁场的作用下产生连续变化的阻尼力/力矩.阻尼器的结构包括一个上盖和一个下盖,一个转子设置于上盖和下盖之间,转子与上下盖之间的间隙充满磁流变液,在磁场作用下其粘度变大时,转子相对于壳体将受阻尼力作用.阻尼力矩的模型主要由以下几部分组成:一是由磁场作用于磁流变液产生的力矩,二是由磁流变液的动力粘度产生的力矩,最后是由装置的摩擦产生的力矩.由动力粘度产生的力矩可以通过简单的方法进行计算,由摩擦产生的力矩可以通过实验测得,而由磁场产生的力矩则要通过电磁场的有限元分析得到.最后,对研制的阻尼器原型进行了性能实验,检验了设计方法的有效性.     

“Commenting on your work is a waste of time only!”: An appraisal-based study of evaluative language in supervisory feedback

Research on supervisory feedback on master’s theses, especially attitudinal stances conveyed in such feedback, is thin on the ground. Students’ construal of their supervisors’ attitudes, however, can have a profound impact on their engagement with supervisory feedback. Drawing on the appraisal framework, which characterizes attitudinal meanings in terms of affect (i.e., emotional responses), judgement (i.e., normative evaluation of human behaviors) and appreciation (i.e., aesthetically-/socially-based evaluation of objects and products), this study examined Nepalese supervisors’ attitudinal stances communicated in written comments on master’s thesis drafts (n = 76) submitted by English-as-a-foreign-language students and oral feedback on proposal and thesis defences (n = 89). Quantitative analyses revealed that while instances of appreciation dominated in the supervisors’ use of evaluative language, judgements were also frequent, with affective responses trailing far behind. In both the oral feedback and written comments, significant disciplinary variations were observed for certain types of judgment and appreciation. These findings are discussed in terms of disciplinary culture and the potential impact of the attitudinal stances on students’ learning. Implications are derived for the productive framing of supervisory feedback to facilitate students’ feedback uptake.     

Assessment feedback in examiner reports on master’s dissertations in translation studies

Assessment is a crucial part of degree programmes in higher education. While previous research has been primarily concerned with PhD thesis assessment practice in western countries, this article considers the focus and assessment criteria of 40 examiner reports on master’s dissertations in translation studies at a Chinese university. The results indicate that these examiners structured their reports in four rhetorical moves: ‘preparing the candidate for a decision’, ‘expressing an evaluation’, ‘conveying the decision’, and ‘making recommendations’. These examiners appeared to place more emphasis on the expression of ideas, rather than on the accuracy and originality of those ideas. They apparently adopted flexible working criteria, assessing the dissertations based on institutional requirements and on their own experience. This article concludes with a discussion of implications for dissertation writing.