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基于将正项级数审敛法推广到函数级数一致收敛上去的思想,类比正项级数的Gauss判别法、对数判别法、拟对数判别法以及它们的极限形式,得到了函数级数一致收敛的相应判别法,丰富了函数级数一致收敛审敛法. 相似文献
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应用正项级数收敛与发散的比较判别法、比式判别法及p级数 收敛与发散的判别法及极限理论给出判别正项级数收敛与发散的其它方法。 相似文献
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正项级数中拉贝（Raabe）判别法，是可以判别级数的项收敛于零的速度较慢的一些正项级数，因此Raabe判别法判别级数的范围更大，笔者在于创建一个新的判别法，并进一步研究这个新的判别法是与Raabe判别法等价的。 相似文献
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正项级数敛散性的一个判别法则 总被引：1，自引：0，他引：1
李晓康 《陕西理工学院学报(社会科学版)》2004,22(6):79-80
利用正项级数的基本定理、比较判别法及p＿级数的敛散性,给出了正项级数敛散性的一个判别法则,并给出了实例. 相似文献
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讨论了正项级数的两种判别法：比值判别法和根值判别法，以及两者的关系，从一个引理出发证明了凡是可用比值判别法的正项级数必能用根值判别法，在一定条件下逆命题也成立。 相似文献
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谢春娣 《湖北成人教育学院学报》2005,11(5):69-70
正项级数收敛的达朗伯尔判别法是一个常用的判别方法，本文在达朗伯尔判别法的基础上提出了一个新的正项级数收敛性判别方法，通过讨论新的判别方法和达朗伯尔判别法之间的关系，说明了该判别方法较达朗伯尔判别法更为精细同时使用方便。 相似文献
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孙珍 《湖北广播电视大学学报》2011,31(1):160-160
对于通项收敛比较慢的正项无穷级数,常用于判断级数敛散性的达朗贝尔判别法和柯西判别法就无能为力了。拉贝判别法的判别范围要更广泛些。对于级数求和也是一个比较复杂的问题,通用的求和方法比较少,本文将举例说明拉贝判别法的推广研究能给出一种通用的正项收敛级数和的估值计算方法。 相似文献
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对于正项级数,判定其敛散性有许多方法,常用的有达朗贝尔判别法,柯西判别法等,但有些级数用此二法不能判定其敛散性,比如在此二法中极限为1的正项级数.在这篇文章中,将给出判定正项级数敛散性的另外一种方法以及一些相关的推论,解决了以上的问题. 相似文献
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心理测验在人力资源管理中的应用 总被引：3，自引：0，他引：3
心理到验一诞生，就被社会各界所广泛接受和运用，并蓬勃地发展起来，尤其在人力资源管理领域中的应用越来越深入。在当今的心理测验中，可以归结为四大类：人格测验、能力测验、职业兴趣测验和情境测验。 相似文献
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郑献芹 《新乡师范高等专科学校学报》2006,20(4):136-138
自1994年国家三部委联合发布《关于开展普通话水平测试的决定》开始,普通话水平测试工作在全国范围内正式拉开帷幕,对普通话水平测试的研究也成了一项重要的课题。本文拟对2002~2004的普通话水平测试研究概况进行描述,并提出一些值得思考的问题。 相似文献
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This study was designed to investigate the convergent validity of individual clinical task interviews as presented by Piaget and Inhelder paired with three widely used group tests of cognitive development. These tests are designed to assess the acquisition of cognitive abilities. The three group test raw scores paired with summed raw scores on four concrete-formal task interviews yielded the following Pearson product-moment correlations: Reasoning Test (Ankney and Joyce), 0.43; Logical Reasoning Test (Burney), 0.61; Classroom Test of Formal Operations (Lawson), 0.37. The raw data was then ranked into cognitive level groups and presented on contingency tables. The following contingency coefficients were determined: Logical Reasoning Test, 0.52; Logical Reasoning Test (adjusted), 0.61; Classroom Test of Formal Operations, 0.50. This study reflects that the Reasoning Test tends to indicate lower cognitive levels of subjects when paired with summed scores on the clinical task interviews, whereas the Logical Reasoning Test and the Classroom Test of Formal Operations tend to indicate higher cognitive levels of subjects when paired with summed scores on the clinical task interviews. In each case the correlations do not appear to be sufficiently strong to warrant selection or categorization of an individual student based on his/her test performance. 相似文献
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In this article, we introduce a section preequating (SPE) method (linear and nonlinear) under the randomly equivalent groups design. In this equating design, sections of Test X (a future new form) and another existing Test Y (an old form already on scale) are administered. The sections of Test X are equated to Test Y, after adjusting for the imperfect correlation between sections of Test X, to obtain the equated score on the complete form of X. Simulations and a real‐data application show that the proposed SPE method is fairly simple and accurate. 相似文献
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高职教育考试属于目标参照考试,因为目标参照考试成绩是非正态分布的,因此在进行成绩对比分析时,应根据资料的类型和分析的目的选择相应的非参数统计分析方法。 相似文献
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美国大学入学考试SAT深度剖析 总被引：4，自引：0，他引：4
REN Chang-song 《教育理论与实践》2007,(13)
SAT是美国历史上使用最为广泛、研究最为深入的大学入学考试,至今已有80年的历史。SAT分为推理考试(SAT Reasoning Test)和学科考试(SAT Subject Tests)两类,一般人们常说的SAT指的是SAT推理考试。SAT考试全美统一,SAT推理考试每年举行7次。SAT不是智力测验,也不是学业测验,但近年来,SAT试题的设计与学生们在高中课堂里学习的内容越来越密切地相关起来。 相似文献
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A deficiency in temporal pattern discrimination frequently is a distinguishing characteristic of children with dyslexia or learning disabilities (LD). We studied the feasibility of using the Seashore Rhythm Test, a subtest of the Halstead-Reitan neurological assessment battery (Halstead, 1947), with young children to discriminate children with reading impairments from age-matched controls reading at a normal level, in an effort to develop tools to determine readiness to read in young school-age children. Major considerations in test selection were ease of administration and wide use and acceptance. Fifty-nine children in Grades 1 through 3 were administered a battery of tests during the last 3 weeks of the school year by blinded experimenters. Tests administered included the Seashore Rhythm Test, Benton Visual Retention Test, Peabody Picture Vocabulary Test, Blau Torque Test, and the Rod and Frame Test. Children with reading impairments (n = 24) in all age groups were found to exhibit a marked deficit in the ability to discriminate patterned pairs of tones on the Seashore Rhythm Test compared to controls (n = 26). These children also exhibited deficits in right-left orientation, as indicated by their poor performance on the Blau Torque Test. Performance on the Seashore and the Blau by a group of children diagnosed as learning disabled (n = 9) was similar to the group with reading impairments. No significant differences between controls and children with reading impairments or LD were observed in Rod and Frame or Benton performance. The results suggest that the Seashore Rhythm Test may prove to be a useful tool to detect young children who will later show signs of reading impairment. 相似文献
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单敏 《湖北广播电视大学学报》2010,30(1):40-41
PETS口试一直是困扰高职生的问题,往往使这类考生感到茫然无助。本文介绍了PETS口试的形式、程序与技能要求,分析了职校考生在口试过程中存在的问题,提出了职校英语教学应与PETS口试相结合,根据实际情况提高学生英语口语交际能力的对策,使考生都能顺利在PETS口试上过关。 相似文献
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Susan Dickerson Mayes Susan L. Calhoun Edward O. Bixler Dennis N. Zimmerman 《Learning and individual differences》2009,19(2):238-241
Word reading and math computation scores were predicted from Wechsler Abbreviated Scale of Intelligence Full Scale IQ, 10 neuropsychological tests, and parent attention deficit hyperactivity disorder (ADHD) ratings in 214 general population elementary school children. IQ was the best single predictor of achievement. In addition, Digit Span contributed significantly to reading prediction, and the Developmental Test of Visual-Motor Integration (VMI) and Coding contributed to math prediction. The remaining neuropsychological test scores did not significantly improve achievement prediction. Exploratory factor analysis yielded a general ability factor (comprising the four IQ subtests, Digit Span, VMI, reading, and math), five factors made up solely of subtests from single measures (Wisconsin Card Sorting Test, Stroop Color and Word Test, Gordon Diagnostic System, California Verbal Learning Test, and ADHD ratings), a factor consisting of Grooved Pegboard Test and Coding, and a factor consisting of Symbol Search and Animal Naming Test. 相似文献
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陕西人普通话水平测试中的声调问题 总被引：1，自引：0，他引：1
韩承红 《陕西教育学院学报》2002,18(3):47-49
普通话水平测试是新时期推广普通话的最新举措，是一项国家考试，也是一个亟待研究的重要课题。本探讨了在普通话水平测试实践中陕西方言区在声调方面存在的主要问题，出现的原因及解决的对策，以期提高普通话水平测试工作的质量。 相似文献