An Assessment of Statistical Process Control-Based Approaches for Charting Student Evaluation Scores

We compare three control charts for monitoring data from student evaluations of teaching (SET) with the goal of improving student satisfaction with teaching performance. The two charts that we propose are a modified p chart and a z‐score chart. We show that these charts overcome some of the shortcomings of the more traditional charts for analyzing SET data. A comparison of three charts (an individuals chart, the modified p chart, and the z‐score chart) reveals that the modified p chart is the best approach for analyzing SET data because it utilizes distributions that are appropriate for categorical data, and its interpretation is more straightforward. We conclude that administrators and faculty alike can benefit by using the modified p chart to monitor and improve teaching performance as measured by student evaluations.     

浅谈软件过程性能及稳定性的分析方法

目前常用的软件过程模型有CMM、PSP、TSP和敏捷开发过程等,对这些过程模型的使用,需采用统计过程控制方法的控制图等工具对过程数据采样点进行分析,以便了解过程性能和过程能力,采取措施消除过程异常,保证过程的稳定性,从而提高软件开发质量.本文简要介绍了CMM、PSP等过程模型以及基于离散数据的控制图分析过程稳定性的方法.     

Using Paper Helicopters to Teach Statistical Process Control

This hands‐on project uses a paper helicopter to teach students how to distinguish between common and special causes of variability when developing and using statistical process control charts. It allows the student to experience a process that is out‐of‐control due to imprecise or incomplete product design specifications and to discover how the process can be brought into control through the use of standardized product specifications and associated construction procedures. It also allows the student to experience common causes of variability, to distinguish these from the special causes of variability resulting from the incomplete design specifications, and to discover how standardization reduces process variability. The project has been used in both undergraduate and MBA classes and demonstrates these concepts in a way that is easy for the student to understand and remember.     

图表列示法在会计教学中的运用

图表列示法是运用一定形式的图形表格来表达教学内容的方法。在会计教学中运用图表列,示法,能收到事半功倍的效果。     

Using Statistical Control Charts to Analyze Data from Student Evaluations of Teaching

In this paper, a method for analyzing data from student evaluations of teaching is presented. The first step of the process requires development of a regression model for teacher's summary rating as a function of student's expected grade. Then, two‐sigma control charts for individual evaluation scores (section averages) and residuals from the regression model are used to identify both excellent and poor outcomes. The performance of an individual whose scores are out of control on both charts cannot be explained by expected grade and therefore is worthy of note.     

Incidence and impact of sexual abuse in a child outpatient sample: The role of direct inquiry

From the child psychiatry outpatient department of a university medical center, 64 charts were reviewed in two phases: 29 were randomly selected from outpatient files, and 35 were examined after clinicians were asked to directly query sexual abuse. Although the reported sexual abuse rate for randomly selected charts was quite low (6.9%), reference to sexual abuse history in charts of children who were asked about molestation was 4.5 times more frequent (31.4%; 11.5% of all boys, 50% of all girls). Children with an identified sexual abuse history reported more psychological symptoms, had made more suicide attempts in the past, and were more likely than nonabused children to receive a diagnosis of major depression.     

Continuous improvement in the Industrial and Management Systems Engineering programme at Kuwait University

This paper describes the process employed by the Industrial and Management Systems Engineering programme at Kuwait University to continuously improve the programme. Using a continuous improvement framework, the paper demonstrates how various qualitative and quantitative analyses methods, such as hypothesis testing and control charts, have been applied to the results of four assessment tools and other data sources to improve performance. Important improvements include the need to reconsider two student outcomes as they were difficult to implement in courses. In addition, through benchmarking and the engagement of Alumni and Employers, key decisions were made to improve the curriculum and enhance employability.     

计量型数据控制图在转向泵生产中的实用技术研究

在汽车行业的质量控制体系中,企业通常都会把控制图作为重要的过程控制手段.一般说来,企业都严格遵循SPC技术运用固定化和模式化的标准控制图来进行质量管理和过程控制.然而,大连液压件厂通过实践,使计量型数据控制图技术在汽车转向泵的生产中得到应用,并独创了阀孔控制图和试验台用油清洗度控制图,增强了控制图的适用性,效果比较理想,有很好的实用价值.     

度量软件过程行为变量数据控制图的比较研究

阐述了软件过程度量的理论依据,介绍了软件过程行为控制图的组成,对三种变量数据控制图进行了比较研究。     

Statistical Process Control and Cooperative Learning Structures: A Data Assessment and Improvement System Used in a San Jose State University Summer Bridge Programme

This paper will show how tools of statistical quality control were applied to a Summer Bridge Mathematics and Science programme at San Jose State University. These tools were used as assessment instruments to facilitate improvement in overall classroom performance. We shall show how quality control tools such as brainstorming, Pareto analysis and cause-and-effect analysis can be used to identify the ‘big’ problems and to analyze the cause(s) of the ‘big’ problems. Additionally, we shall show how control charts can be used effectively to monitor how the suggested corrective actions for causes of the ‘big’ problems are faring—or acting—on the outcomes-based process. Finally, we shall show how these control charts can be used to aid in monitoring and determining whether or not the ongoing outcomes-based process is stable. Once the ‘big’ problems have been eliminated and the ongoing process is in control, we shall further demonstrate how ‘monitored assessments’, cooperative learning activities and control charts can help to improve the overall process.     

学生团队会议组织方法与分析方法浅析

团队协作能力是企业雇佣人员考虑的重要因素,也是学生职业能力培养的基本内容之一,而团队成功的最重要因素是有效的团队会议。学生团队会议组织方法与分析方法,前者包括确定角色、任务和规则、会议议程和会议纪要、项目计划和进度表;后者包括头脑风暴法、亲和图法、关联图法、因果图、流程图、故事板、帕累托图和名义群体法。     

多元智能理论框架下学生评价方法

论述了多元智能理论对教育改革中的学生评价工作的作用,认为它提供了全新观念和角度,在这个理论的框架下建立一套新的学生评价方法,应该是必要且可行的。结合多元智能的几个基本观点和部分实验结论,设计了一种用于学生评价的量化考核方法。评价结果以图表形式体现,既直观生动又具有科学的可比性。     

水泥机立窑煅烧过程微机智能模糊控制

本文以水泥机立窑煅烧过程为对象,把智能控制的思想和模糊控制理论相结合,设计出一种智能模糊控制器。     

CUSUM控制图在Levy稳定过程中均值变点监测的研究

研究了特征指数α取值1〈α〈2时,CUSUM控制图在Levy稳定过程平均运行长度的近似估计。     

Control engineering,system theory and mathematics: the teacher's challenge

The principles, difficulties and challenges in control education are discussed and compared to the similar problems in the teaching of mathematics and systems science in general. The difficulties of today's students to appreciate the classical teaching of engineering disciplines, which are based on rigorous and scientifically sound grounds, are discussed. The new demands for modern engineering education assume that the mathematical skills of the students in modelling, analysis, synthesis, simulation and validation of control problems improve significantly, which sets a major challenge to the education system. To meet that challenge new activating teaching methods are needed, which together with traditional studies bring the students closer to practical applications. In the current paper two new teaching methods are presented, which are aimed at bringing the control world near the student more easily than the traditional courses do. These example cases are control courses in the net with self-study sections, interactive repetitive questions, problems with complete solutions (both pen and paper and computer problems). Also, new ‘interactive laboratory exercises’ have been included, where the students prepare their preliminary problems first, and after that test the controller with a real process over the net (from their home or from a computer class).     

三菱可编程控制器PID指令调速应用研究

为了实现工业控制系统的PID控制,利用PLC与PID指令建立控制器,分析模拟量、脉冲量输入输出系统信号传递过程,设计三菱PLC程序实现变频闭环调速系统控制过程。文章通过实例论述PID控制系统构建,提出脉冲量输入输出控制方式,具备同类控制系统建设的参考价值与实际意义。     

Application of Control Charts to an Educational System

Gathering information or collecting data is the norm in school systems across the nation. Using that data to make informed decisions should necessitate the use of statistical tools. One such tool, developed by Walter A. Shewhart at Bell Laboratories in 1924, was the ‘Control Chart,’ a means of determining whether a process had been operating in a state of statistical control or operating in the presence of special causes of variation warranting corrective action. Use of control charts has long been an industry practice. As a school district interested in continuous quality improvement, Beloit Turner explored the application of control charts to a number of instructional and non-instructional areas early on in a restructuring project. This article looks at five such explorations.     

一类参数时变工业过程的自适应控制设计与仿真

针对一类典型的参数时变的实际工业过程,基于模型参考自适应控制（MRAC）理论,提出了一种新的自适应控制方案。分析了实际工业生产过程中的复杂性,应用MRAC理论设计了自适应控制器,给出了给控制方案的稳定性分析。最后,在MATLAB环境下对一个典型的工业过程进行了仿真实验,分析了这种控制方案的优越性。仿真结果表明该控制方案的优越性和在实际工业过程中的重要应用价值。     

数字电路教学中几个问题的探讨

通过分析逻辑函数的最小项表式与卡诺图相应项之间的内在联系,总结出从逻辑或直接填卡诺图的方法,省去教材中要求把逻辑式化成最小项之和的繁琐过程(步骤);比较了时序逻辑电路设计中卡诺图法的直观性和次态卡诺图法的内在联系与一致性;讨论了二进制加减法的综合电路设计。