Individually Weighted-Average Models: Testing a Taxonomic SEM Approach Across Different Multidimensional/Global Constructs Because the Weights “Don’t Make No Nevermind”

From the time of William James, psychologists have posited individually importance-weighted-average models (IWAMs) in which weighting specific attributes by individual measures of importance improves prediction of the global outcome measures. Because IWAMs cause much confusion, we briefly review a general taxonomic paradigm and structural equation models for testing IWAMs, and demonstrate its application for 2 simulated and 3 diverse “real” data applications (multidimensional measures of self-concept, quality of life, and job satisfaction). Consistent across the real data applications and previous research more generally, there is surprisingly little support for IWAMs when tested appropriately. In these diverse tests of IWAMs we integrate new approaches such as exploratory structural equation modeling (SEM), alternative approaches to constructing latent interactions, application of bifactor models, modeling method and item-wording effects, and the juxtaposition of model evaluation in relation to goodness of fit (typically used in SEM studies) and variance explained (typically used in multiple regression tests of IWAMs).     

浅谈和谐班级的构建

和谐的校园由和谐的班集体构成,和谐的班集体靠学校教师来构建,因此构建和谐班级是班主任义不容辞的责任。班主任应从建立和谐师生关系、生生关系和学习环境等方面去构建和谐班级。     

基于PLSA的面向用户的网络搜索

针对当前的搜索引擎提供面向查询、而非面向用户的服务,从而导致搜索引擎无法满足用户个性化的需求这一问题,提出了一种基于PLSA的新方法,将面向查询词的搜索转变成面向用户的搜索.首先,通过分析用户查询历史和浏览记录建立代表用户模型的用户兴趣向量,在用户发出查询时用户的查询词根据用户兴趣向量被映射到兴趣分类上,最终根据面向用户排序算法将返回结果列表重新排序.实验表明该面向用户搜索系统能够充分考虑用户的偏好,从而更好地满足不同用户的信息需求.     

Application of Latent Growth Curve Analysis With Categorical Responses in Social Behavioral Research

Latent growth modeling allows social behavioral researchers to investigate within-person change and between-person differences in within-person change. Typically, conventional latent growth curve models are applied to continuous variables, where the residuals are assumed to be normally distributed, whereas categorical variables (i.e., binary and ordinal variables), which do not hold to normal distribution assumptions, have rarely been used. This article describes the latent growth curve model with categorical variables, and illustrates applications using Mplus software that are applicable to social behavioral research. The illustrations use marital instability data from the Iowa Youth and Family Project. We close with recommendations for the specification and parameterization of growth models that use both logit and probit link functions.     

饱和蒸汽压测量及汽化潜热推算系统的开发

根据静态法测量液体饱和蒸汽压的实验原理,设计、建立了饱和蒸汽压测量实验系统,同时,开发了推算水溶液汽化潜热的计算机软件。以去离子水为工质对实验系统的准确性、可靠性、稳定性以及推算软件的适用性进行了验证。这套实验测量及推算系统已经应用于实际当中。     

发展性课堂教学评价的理论探析

长期以来,我国普通中学课堂教学评价的最大弊端就是忽略了以人为本的教学思想,忽略了教师成长与学生发展这一教育教学的最终目的。在新课程理念下,原有课堂教学评价的弊端日益显露。本文通过发展性课堂教学评价的理论溯源,阐述了新时期普通中学发展性课堂教学评价的现代教育学涵义。     

我国高等教育大众化进程中的潜在风险探析

高等教育作为人类有目的的人力资本增值的投资活动，它给社会和受教育个人带来滞后性高经济回报的同时，也存在着潜在风险，特别是在高等教育大众化的进程中，表现得十分明显，当这种风险的“量”累积达到一定程度时，也会产生危机。借鉴国外发达国家发展的经验和教训，充分发挥我国高等教育的后发优势，成功防范和化解我国高等教育大众化进程中的潜在风险，确保我国高等教育持续协调发展，具有重要的现实意义。     

Covariates and Mixture Modeling: Results of a Simulation Study Exploring the Impact of Misspecified Effects on Class Enumeration

For some time, there have been differing recommendations about how and when to include covariates in the mixture model building process. Some have advocated the inclusion of covariates after enumeration, whereas others recommend including them early on in the modeling process. These conflicting recommendations have led to inconsistent practices and unease in trusting modeling results. In an attempt to resolve this discord, we conducted a Monte Carlo simulation to examine the impact of covariate exclusion and misspecification of covariate effects on the enumeration process. We considered population and analysis models with both direct and indirect paths from the covariates to the latent class indicators. As expected, misspecified covariate effects most commonly led to the overextraction of classes. Findings suggest that the number of classes could be reliably determined using the unconditional latent class model, thus our recommendation is that class enumeration be done prior to the inclusion of covariates.     

对辽宁高职院校冬季体育教学的探索

辽宁地处祖国东北,冬季漫长而寒冷。由于一些客观因素的影响,使冬季体育教学成为高职院校一个薄弱环节。存在冬季体育课内容贫乏、形式单一,没有明显地域特点等问题。因此,提出几点冬季体育教学的建议。     

The living university in relation to popular classes in Brazil. A critical analysis of higher education policies

ABSTRACT

This article discusses the relationship between university and popular classes as an alternative to the privatist tendencies of higher education policies, as well as science and technology, in Brazil, in this period of transition from the neo-developmental project to the deepening of counter-reforms, which started in the 1990s. The subject is developed from bibliographical and documental research (Brazilian legislations), besides testimonies from Brazilian researchers who have worked together with family farmers, smallholders, settlers, and recyclable material collectors that are organised in cooperatives and associations. Our analyses are structured in dialogue with the hypothesis of dysfunctionality of the university. A review of higher education and science and technology policies is carried out and considered in regard to inclusion and the relationship with the popular classes. Our focus is on the first decade of the twenty-first century, a brief period of neo-developmentalism that ended with the deepening of the current counter-reforms. Initially, it is analyzed the higher education. Then, it is discussed the trends in Science and Technology policy. This is followed by analyzes of the relationship between university and popular classes, an alternative that is carried out contradictorily. It is concluded that the University recreates itself by contributing to popular classes.