初中代数“有理数”程序教学实验研究

本研究对程序教学与传统教学的效果作了对比。研究表明,程序教学可以缩短学习时间、提高学习效果、激发学习动机,有助于自学能力的培养。如果程序教材能够符合学生的认识规律,在教材中尽量增加启发因素,那么程序教学对于思惟能力的培养也可以起到积极的作用。     

文昌鱼的光动反应

文昌鱼的中枢神经系统早在上个世纪就受到神经解剖学家们的注意。这是因为它代表着动物演化上的一个很典型的阶段。在这个阶段,动物身体的背侧开始有了神经管。这个神经管在外形上很象脊椎动物胚胎初期形成的神经管,其内部的神经组织也较简单。此外,正如神经管初成阶段的脊椎动物胚胎一样,文昌鱼还不具备发育的和特异     

A comparison between the development of the appearance-reality distinction in the People's Republic of China and the United States

A study of the appearance-reality distinction in American 3- to 5-year-olds was replicated with Chinese 3- to 5-year-olds. The error patterns, age changes, and absolute levels of performance were similar in the two samples. It was speculated that the acquisition of this distinction may be a universal, possibly age-linked development that is probably fueled by experiences with appearance-reality discrepancies that are available in all cultures.     

The Stroop congruency effect is more observable under a speed strategy than an accuracy strategy

Naming the ink color of an incongruent color word (e.g., RED printed in green) usually takes longer than naming the ink color of a color bar. However, when the ink matches the word (e.g., RED printed in red), naming tends to be faster. These phenomena are known as the STroop interference effect and the Stroop congruency effect, respectively. Although the interference effect has been robust and reliable across studies, the congruency effect tends to be elusive. It was hypothesized that this variation in outcomes might be related to subjects' response strategy. The experiment conducted to test this hypothesis induced either a speed or an accuracy strategy in two separate groups of subjects. Significant interference effects were found for both groups and the magnitudes did not differ. At the same time, the congruency effect was observed in the speed group but not in the accuracy group. These results suggest that researchers who wish to observe and study the Stroop congruency and interference effects should place special emphasis on speed. Implications of the study for a model of the Stroop effect are also discussed.     

平行斜线诱导的垂直错觉之规律及原因初探

此实验测定了20个大学生和青年工人的垂直错觉。错觉模式的诱导部分为一组平行斜线,测试部分为差不多互相垂直的竖直线和水平线。在平行斜线诱导下,被试产生了把测试部分看成垂直的错觉。错觉量的大小与诱导线的倾斜角度有关。把此错觉模式的诱导部分与测试部分分开,以实体镜观察时(一个眼各看一部分,两眼同时观察)则没有发生错觉,说明此错觉最初可能发生于视网膜上。此错觉可用侧抑制理论来解释。     

全球地域化:基督宗教在华传播史的一种诠释——对章开沅"传播与植根"观念的解读

章开沅自20世纪80年代中期涉足中国基督宗教史研究领域.他通过深入考察基督宗教在中国传播的历史进程,精辟阐释中西文化的巨大差异,透彻解析中外基督徒有识之士的经典著述,站在跨文化对话的高度,对中国基督宗教史予以"全球地域化"解读.章开沅认为,只有构筑中国本土化的世界观与价值观,才是基督宗教在华"传播与植根"的必由之路.     

Stopping rules for multi-category computerized classification testing

Computerized classification testing (CCT) aims to classify persons into one of two or more possible categories to make decisions such as mastery/non-mastery or meet most/meet all/exceed. A defining feature of CCT is its stopping criterion: the test terminates when there is enough confidence to make a decision. There is abundant research on CCT with a single cut-off, and two common stopping criteria are the sequential probability ratio test (SPRT) statistic and the generalized likelihood ratio statistic (GLR). However, there is a relative scarcity of research extending the SPRT to the multi-hypothesis case for when there is more than one cut-off. In this paper, we propose a new multi-category GLR (mGLR) statistic as well as a stochastically curtailed version of the CCT with three or more categories. A simulation study was conducted to show that the mGLR statistic outperformed the existing stopping rules by generating shorter average test length without sacrificing classification accuracy. Results also revealed that the stochastically curtailed mGLR successfully increased test efficiency in certain testing conditions.     

Word Learning in L2 Chinese: from Perspectives of Learner-Related and Language-Related Factors

Journal of Psycholinguistic Research - Word learning in a second language (L2) is a complex process, which is affected by learner-related (e.g., morphological awareness) and language-related (e.g.,...     

Lattices of Finitely Alternative Normal Tense Logics

Studia Logica - A finitely alternative normal tense logic $$T_{n,m}$$ is a normal tense logic characterized by frames in which every point has at most n future alternatives and m past alternatives....     

Using EM Algorithm for Finite Mixtures and Reformed Supplemented EM for MIRT Calibration

Psychometrika - This study revisits the parameter estimation issues in multidimensional item response theory more thoroughly and investigates some computation details that have seldom been...