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《Learning and individual differences》1999,11(2):121-136
If test scores are collected from an individual pupil at different points in time and a state-space model is available for describing latent ability development over time, the Kalman filter and smoother turn out to be the optimal procedures for estimating the pupil's latent curves. The Kalman filter is implemented in the Nijmegen Pupil Monitoring System, LISKAL. The essentials of Kalman filtering and smoothing in comparison to traditional cross-sectional factor score estimators are explained, stressing unbiasedness considerations and the initialization problem. The state-space model is represented as an SEM (structural equation model) and estimated by means of an SEM program. The value of the Kalman filter and smoother in pupil monitoring is enhanced by specifying a “structured means” instead of the traditional “zero means” SEM model and by introducing random subject effects. 相似文献
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Leslie A. Hayduk Hannah Pazderka Robinson Greta G. Cummings Kwame Boadu Eric L. Verbeek Thomas A. Perks 《Structural equation modeling》2013,20(2):280-310
Researchers using structural equation modeling (SEM) aspire to learn about the world by seeking models with causal specifications that match the causal forces extant in the world. This quest for a model matching existing worldly causal forces constitutes an ontology that orients, or perhaps reorients, thinking about measurement validity. This article illustrates several ways the seemingly innocuous quest for structural equation models that mirror “the world beyond” confronts entrenched notions of measurement validity. The article begins by considering simple measurement models and ends by “discovering” a new class of indicators called reactive indicators. Reactive indicators act as both the cause and effect of an underlying latent variable. The identifiability of a simple model containing a reactive indicator is proven and a research example illustrating the use of a reactive indicator is provided. However, the real challenge is to understand how an indicator can be both a cause and effect of the latent it measures. The understanding does not come from complying with the traditional rules for reliability and validity, but from focusing on the quest to make the structural equation model match the structuring of the worldly forces we seek to understand. Valid measurement in the context of a weirdly structured world requires an equally weird structural equation model. 相似文献
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The authors argue that learning is not only a process basing on speech but as well one of the body. Learning also includes civilizing the body, being able to control the muscles and the emotions and to behave in different contexts. Each institution and culture develops modes of bodily behavour. Institutions like schools, societies and political systems present different models that are to be learned. The question of the following article is that which models for pupils the two German systems had developed and how these where performed by the pupils. The autors show that the model of the diligent pupil was present in both systems, because the behaviour connected to this model is functionally adequate for learning. Western Germany also promoted the model of the “pensive” pupil which was mainly presented for male students. The GDR developed the “socialist pupil personality” that included a political role as an activist and “polytechnics”. But it was difficult to find an own presentation for that. From the sixties on the model ressembled more and more that of the diligent pupil. 相似文献
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借助基于二阶高斯-马尔可夫异常位模型的重力异常协方差函数,得到了海洋重力测量中重力异常信号的状态方程．结合实际重力仪的系统状态方程和系统量测方程,提出了级联卡尔曼滤波方法,并将其应用于重力异常畸变信号的校正处理中．在信号处理过程中,首先采用卡尔曼逆滤波恢复含高频干扰的重力异常,然后采用自适应卡尔曼滤波,以重力异常状态方程为系统方程估计实际重力异常值,并与单一卡尔曼逆滤波器的处理结果进行了对比分析．仿真和试验表明,级联卡尔曼滤波方法和单一卡尔曼逆滤波都能在一定程度上减小重力异常信号的畸变,但在相同背景条件下,级联卡尔曼滤波方法的性能优于单一逆卡尔曼滤波． 相似文献
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Leonie V. D. E. Vogelsmeier Jeroen K. Vermunt Eeske van Roekel Kim De Roover 《Structural equation modeling》2019,26(4):557-575
When time-intensive longitudinal data are used to study daily-life dynamics of psychological constructs (e.g., well-being) within persons over time (e.g., by means of experience sampling methodology), the measurement model (MM)—indicating which constructs are measured by which items—can be affected by time- or situation-specific artifacts (e.g., response styles and altered item interpretation). If not captured, these changes might lead to invalid inferences about the constructs. Existing methodology can only test for a priori hypotheses on MM changes, which are often absent or incomplete. Therefore, we present the exploratory method “latent Markov factor analysis” (LMFA), wherein a latent Markov chain captures MM changes by clustering observations per subject into a few states. Specifically, each state gathers validly comparable observations, and state-specific factor analyses reveal what the MMs look like. LMFA performs well in recovering parameters under a wide range of simulated conditions, and its empirical value is illustrated with an example. 相似文献
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中国“修身”的道德教育思想有注重外在规范与行为养成的传统,同时内在蕴含“修心”的思路。中国文化中的“心”概念与西方哲学对认知与理性的强调相对,表现出明显的情感取向,是人之为人的本质所在。心作为内在意义世界,标画出人的道德意义系统,该意义世界和意义系统具有在世品格与开放自主性。从这一心概念出发,中国传统道德教育思想的内在理路可以被概括为“以心观心”。“以心观心”的内在理路是:首先引导人从心的角度观照道心和他心,从而进入道德意义系统;以前者为前提,指引人从我心走向道心和他心,并在这一行动过程中进一步体认道德意义,如此循环往复,不断充实意义世界,共创和谐美善的人间。 相似文献
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Anthonia A.M. Houtveen Saskia K. Brokamp 《School Effectiveness & School Improvement》2013,24(4):555-569
The learning gains in reading of students in 57 classrooms in special primary education doubled as a result of implementing the Reading Impulse in Special Education (RISE) programme. Raising the scheduled reading time with 1.5 hr in all classrooms and implementing standards-based teaching characterised by “monitoring of pupil progress”, “reflection on own teaching”, and “setting targets” are the most important explanations for the improvement in pupils’ reading achievements. 相似文献
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福柯在《规训与惩罚：监狱的诞生》中提出,规训有四种基本方式、三种核心手段和一种机制。四种基本方式是空间分配、活动控制、创生的筹划、力量的编排,这是规训的＂微观技术＂;三种核心手段是层级监视、规范化裁决、检查,这是规训的＂宏观手段＂;一种机制是全景敞视主义。现代学校教育是一种规训教育,通过对学习空间、时间的分配与管控,＂活动＂控制及以＂检查＂＂考试＂之名落实规训等手段得以体现。规训教育导致教育理想的散失、人的物化及师生关系紧张化等后果。 相似文献
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Laura Boeschoten Daniel L. Oberski Ton De Waal Jeroen K. Vermunt 《Structural equation modeling》2018,25(5):750-761
Latent class models are often used to assign values to categorical variables that cannot be measured directly. This “imputed” latent variable is then used in further analyses with auxiliary variables. The relationship between the imputed latent variable and auxiliary variables can only be correctly estimated if these auxiliary variables are included in the latent class model. Otherwise, point estimates will be biased. We develop a method that correctly estimates the relationship between an imputed latent variable and external auxiliary variables, by updating the latent variable imputations to be conditional on the external auxiliary variables using a combination of multiple imputation of latent classes and the so-called three-step approach. In contrast with existing “one-step” and “three-step” approaches, our method allows the resulting imputations to be analyzed using the familiar methods favored by substantive researchers. 相似文献
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马洁 《集美大学学报(教育科学版》2022,(1)
教学空间不仅是包含教学器具、教室建筑等的自然性空间,也是关涉师生交往、角色定位等人与人间关系的社会性空间。福柯的空间理论是从空间和政治权力关系以及政治统治策略出发对空间生产机制进行的微观层面研究,为理解和看待教学空间如何参与到教育教学中提供了一个强有力的解释性视角。面对从传统教学空间到线上教学空间的转变,教师由于沿用原有的权力控制模式遭到了学生行为变量无法得到有效观察、学生学习效果无法得到及时评估以及课堂教学规范作用无法得到充分发挥等教学方面的挑战。据此,提出从观察“行为”转向观察“认知”、从进行“终结性评价”转向进行“表现性评价”、从构建“教”的规范转向“学”的规范三条路径以实现线上教学空间中权力的运作和控制,提高教育教学质量。 相似文献
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ABSTRACTThe Emotional Literacy Support Assistant (ELSA) programme is an evidence-informed intervention delivered by teaching assistants and supervised by educational psychologists. In this research, semi-structured interviews were conducted to investigate the impact of the ELSA programme on wellbeing from the perspective of pupils. A thematic analysis of the data set identified the following themes: “Feelings and Emotions”, “Engagement”, “Resilience”, “Hopes and Aspirations” and “Relationships”. The findings suggest the ELSA programme has a perceived positive impact on multiple components of pupil wellbeing. These components include positive emotions, negative feelings, engagement, resilience, optimism, accomplishment and relationships, as described by the New Economics Foundation (NEF) and Seligman’s “PERMA model”. The positive wellbeing changes experienced by the pupils occurred through strategies, talking, and forming a close relationship with the teaching assistant. Overall, this research provides evidence to suggest a positive impact of the ELSA programme on pupil wellbeing. 相似文献
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当前中国采取的应试教育模式,在中小学教学空间上体现出“长外廊串联普通教室”的基本布局。闽清城关小学的设计在基本延续传统规划布局和空间设置的基础上,也在校园规划和教学空间的灵活性和适应性方面进行了积极的探索。在规划上,将院落、架空等开放、半开放空间纳入学习使用,成为教育教学的“第二课堂;引入“多义性非功能空间”的理念,优化教学空间,激发出更大活力,以可持续发展的理念应对未来开放式教学的需要。 相似文献
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A new approach is proposed in this paper for the problem of the target motion analysis (TMA) with signal propagation time delay. This problem is an unobservable tracking problem in which the acoustic signal transmits with time delay. We present an intelligent range parameterized unscented Kalman filter (IRPUKF) algorithm to estimate the state of the nonlinear unobservable tracking system and propose a recursive model parameter online adjustment method to deal with the time delay in signal propagation. In a simulation of tracking target using a maneuvering acoustic sensor with signal time delay case study, the effectiveness and efficiency of the proposed algorithm is testified to perform better, compared with the range parameterized extended Kalman filter (RPEKF) algorithm. 相似文献
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邓满华 《河南科技学院学报》2014,(9):51-53
在中国沦陷时期的特殊语境下,人们言说方式也具有特殊性。"万象闲话"在"言"与"不言"之间,通过隐喻、借古讽今和含沙射影等方式,寻求特殊时代可能的生存空间。其于"闲话"中所营造的"灰色世界"以及延续的"鲁迅风",打破了"民族文学"失语的现象,成为时代记忆的载体。 相似文献
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Kruschke JK 《Learning & behavior》2008,36(3):210-226
Traditional associationist models represent an organism's knowledge state by a single strength of association on each associative link. Bayesian models instead represent knowledge by a distribution of graded degrees of belief over a range of candidate hypotheses. Many traditional associationist models assume that the learner is passive, adjusting strengths of association only in reaction to stimuli delivered by the environment. Bayesian models, on the other hand, can describe how the learner should actively probe the environment to learn optimally. The first part of this article reviews two Bayesian accounts of backward blocking, a phenomenon that is challenging for many traditional theories. The broad Bayesian framework, in which these models reside, is also selectively reviewed. The second part focuses on two formalizations of optimal active learning: maximizing either the expected information gain or the probability gain. New analyses of optimal active learning by a Kalman filter and by a noisy-logic gate show that these two Bayesian models make different predictions for some environments. The Kalman filter predictions are disconfirmed in at least one case. 相似文献
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Carla Chinga-Ramirez 《欧洲教育》2017,49(2-3):151-165
This article explores how some minority pupils’ self-definition as “foreigners” leads to their inability to also consider themselves diligent and talented pupils in the Norwegian school. The minority pupils’ self-definition as “foreigners” creates binary understandings of being a diligent and conscientious pupil, a definition that is often interpreted as being “Norwegian.” Through observations and conversations with young minority pupils in upper secondary school about their everyday lives, this article shows how the bodies and behavior of some minority pupils are excluded in a firm and often instinctive understanding of equality conceived as sameness. It is argued that even if the concepts of diversity and tolerance are important foundations in the Norwegian education policy, this principle creates a specific notion of a “normal pupil.” This tacit normality has different consequences for different minority pupils, creating complex intersected identities along the categories of gender, social class, and ethnicity. While the notion of a normal pupil creates social exclusion for some pupils with a minority background, this article argues that the entanglement of other categories provides opportunities for success for other minority pupils in the same educational system. 相似文献
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为了更加精确地估算锂电池荷电状态,建立能够反映电池动态工作特性的二阶RC等效模型。在模型参数辨识的基础上,先用数学分析、电路模型构建相关状态方程与观测方程,再结合扩展卡尔曼滤波算法,针对状态噪声与观测噪声的不确定干扰,提出一种自适应调整方案。通过锂电池放电实验,结合MATLAB仿真分析,验证了自适应调整后的卡尔曼滤波算法可更精确地预估锂电池荷电状态,与扩展卡尔曼滤波算法相比,该算法降低了约2.31%的误差。 相似文献
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This paper presents a simple and feasible method of estimating the means andcovariances of system noises.The information about the means and covariances is derivedfrom a suboptimal Kalman filter formed via the approximate statistics.An efficientalgorithm is obtained through WLS(weighted-least-square)estimation by using themeasurement residuals of the suboptimal Kalman filter.Simulations are given to show theefficiency of the method. 相似文献