Model Selection Information Criteria in Latent Class Models with Missing Data and Contingency Question

Latent class analysis (LCA) has been found to have important applications in social and behavioral sciences for modeling categorical response variables, and nonresponse is typical when collecting data. In this study, the nonresponse mainly included “contingency questions” and real “missing data.” The primary objective of this research was to evaluate the effects of some potential factors on model selection indices in LCA with nonresponse data.

We simulated missing data with contingency questions and evaluated the accuracy rates of eight information criteria for selecting the correct models. The results showed that the main factors are latent class proportions, conditional probabilities, sample size, the number of items, the missing data rate, and the contingency data rate. Interactions of the conditional probabilities with class proportions, sample size, and the number of items are also significant. From our simulation results, the impact of missing data and contingency questions can be amended by increasing the sample size or the number of items.     

A Comparison of the Performance of Phase II Simple Linear Profile Control Charts when Parameters are Estimated

The standard deviation of the average run length (SDARL) is an important performance metric in studying the performance of control charts with estimated in-control parameters. Only a few studies in the literature, however, have considered this measure when evaluating control chart performance. The current study aims at comparing the in-control performance of three phase II simple linear profile monitoring approaches; namely, those of Kang and Albin (2000), Kim et al. (2003), and Mahmoud et al. (2010). The comparison is performed under the assumption of estimated parameters using the SDARL metric. In general, the simulation results of the current study show that the method of Kim et al. (2003) has better overall statistical performance than the competing methods in terms of SDARL values. Some of the recommended approaches based solely on the usual average run length properties can have poor SDARL performance.     

Immigrants and refugees: two sides of the same problem. A linguistic analysis through newspapers and social network in Spain 2006 and 2015

ABSTRACT

The phenomenon of immigration has been studied from diverse perspectives. It is important to note that immigration is common during times of crisis. The reason for the avalanche of immigrants to the Canary Islands (Spain) is because it is the gateway to Europe, and therefore, immigrants wanted to enter from this point. This research is based on the need to linguistically determine the treatment of the phenomenon of immigration in the Spanish press. This analysis is relevant given the arrival of thousands of foreign citizens to the coast of the Canary Islands, first in 2006 and almost a decade later, in 2015 to the south of Europe in another great population movement. This research attempts to study four Spanish newspapers, two from the Canary Islands (El Día and Canarias 7) and two Spanish mainland national newspapers (El País and ABC), the online version of the newspapers and their websites were analyzed beside one of the most important social networks, Twitter. The role of incorporating social networks to immigration discourse is also analyzed. To support the data analysis of this research, the Iramuteq software was used.     

冯梦龙情教思想的逻辑分析

冯梦龙的情教思想以情本为逻辑起点,视情为万物生成之本;在此框架内,冯梦龙仔细分析了情本的内核,即情感、情欲、人本思想等,这是情本论的逻辑发展;最后以情教为旨归,与宋明理学殊途同归,构筑一个完整、系统的情教体系.     

我国社会监督存在的问题及其原因分析

社会监督是权力监督制约机制中不可或缺的重要组成部分,是我国反腐倡廉、防止权力滥用的可靠保证.改革开放以来我国社会监督得到了巨大的发展,但其力度和深度不够,存在社会监督主动性弱,政府行为透明度低,监督机制不完善等问题.中国传统的"家天下"的国家观和权力观是造成这种现状的历史和文化原因,对社会监督存在认识误区,政治体制存在的缺陷与不足则是现实原因.     

我国司法透明制度检视

司法透明制度反映了国家司法对社会公众的透明程度,也反映了社会公众对司法行为和司法活动监控的程度。通过对我国司法透明的制度规范、制度实践和制度理念及其相互之间的检讨,揭示出我国司法透明制度的四个特点:(1)司法透明的环节仅限于审判公开,其他环节尚未公开;(2)司法透明的内容仅限于判决书的有限公开,其他文书尚未公开;(3)司法透明的方式基本上是被动式的审判公开,而主动的公开不常见;(4)司法透明的目的是为了“救火”,为了平息矛盾,而不是为了公正裁判本身。     

山西方言与文化综合研究的宏观思考

近20年来,汉语方言的研究在以前的基础上走向了深化,在语音、词汇、语法等方面都取得了巨大的成果。但是,现代汉语方言的研究和现代流语通语的研究一样,大多是在西方现代结构主义语言学理论的影响下进行语音、词汇、语法等方面的描写和切分,不太注意方言文化内涵的发掘与研究。大体上说,人类语言与人类文化的关系是非常密切的,一种方言与其赖以生存的地域文化之间的关系也是非常密切的。但是,这种“非常密切”,到底密切到什么程度,还需要进一步的研究成果来揭示。     

变迁中国家治理模式的类型分析及其启示

自20世纪70年代以来,一些发达国家的政府组织经历了重大的变革,治理成为许多国家改革的新趋势。作者着重分析了国家治理模式的4种类型,即市场式政府、参与式政府、弹性式政府和解制式政府,其治理精神对于我国的行政改革和治理模式的创新,包括政府治理理念的重建、政府结构的优化以及政府运作方式和过程的创新有着很大的借鉴意义。     

深沪两市公司股本结构与净资产收益率及市净率的回归分析

本文以深沪股市全部上市公司为样本 ,经过将一些特殊的上市公司样本剔除 ,对样本股权结构与上市公司净资产收益率及市净率作相关分析 ,探讨并分析我国上市公司股权结构中各比例与公司绩效的相关性