Data Dependent Cells Chi‐Square Test With Recurrent Events

We consider a recurrent event wherein the inter‐event times are independent and identically distributed with a common absolutely continuous distribution function F. In this article, interest is in the problem of testing the null hypothesis that F belongs to some parametric family where the q‐dimensional parameter is unknown. We propose a general Chi‐squared test in which cell boundaries are data dependent. An estimator of the parameter obtained by minimizing a quadratic form resulting from a properly scaled vector of differences between Observed and Expected frequencies is used to construct the test. This estimator is known as the minimum chi‐square estimator. Large sample properties of the proposed test statistic are established using empirical processes tools. A simulation study is conducted to assess the performance of the test under parameter misspecification, and our procedures are applied to a fleet of Boeing 720 jet planes' air conditioning system failures.     

A Nonparametric Test Procedure Based on Quantiles for the Right Censored Data

In this study, we propose nonparametric tests using the several quantile statistics simultaneously for the right censored data. First of all, we consider statistics of the quadratic form with estimated covariance matrices. Then we derive the limiting distribution using the large sample approximation theory. Also we consider different forms of statistics such as the maximal and summing types with their limiting distributions. Then we illustrate our procedure with examples and compare performance among tests with empirical powers through a simulation study. Also we comment briefly on some interesting features including re-sampling methods as concluding remarks. Finally in Appendices, we provide proofs for the theoretic results needed for the derivation of the limiting distributions of the proposed test statistics.     

On Reading Test

There has been a long discussion over the construct validity of reading tests. In china's reading tests, multiple choice is the main test method in view of the4 long controversy over the validity of multiple choice, construct validation is called for to empirically test the hypothesized relationships between test scores and abilities. The national CET committee conducted a comprehensive validation study. As part of the project, the specialists studied the reading comprehension test' s validity by qualitative means, namely "introspective verbal reports". The analysis revealed that an overwhelming majority of the questions items were handled through "expected reading operations".     

中韩创新对出口贸易的影响比较——以专利为视点的实证研究

创新是知识经济时代的特征,是一国竞争力的主要源泉,专利授予量则是衡量一国创新状况的最好指标。在经济一体化的今天,一国的经济实力和该国的贸易状况有着密切的关系。通过EG协整检验、因果关系检验等方法,验证代表一国创新水平的专利尤其是发明专利对外贸出口的直接拉动效应。实证分析显示,在韩国,创新活动在增加出口方面扮演更重要的角色。这表明,一国竞争力的提高关键是自主创新能力的提升。     

当代大学生对女性印象内隐实验研究

本实验采用内隐联结测验（IAT）,回避社会赞许效应等干扰因素,考察了当代大学生对于女性印象的内隐态度,发现他们更认同与现代女性形象即他们女性印象是积极地,独立自主的。且这种内隐认同态度不存在性别差异、城乡差异及文理科差异。     

外资在华跨国并购的发展趋势分析

随着经济全球化和全球信息化的加快,跨国公司对外直接投资迅猛发展,规模急剧扩大,境外投资方式也从原来的以新建投资为主转变为兼并收购为主。但是,由于种种原因,跨国公司在华并购仍然处于较低水平。本文对外资在华并购的现状和投资环境做了分析,并对未来一段时期国外跨国公司在华并购的趋势做了预测。     

新中国文学的中外现代思想资源

随着新中国的成立而诞生的当代文学,走过了半个多世纪的历程。影响当代中国文学走向的中外现代思想资源,包括“五四”新文学、延安文艺、民国时期国统区文学、苏联的社会主义文学模式以及东西方现代文学和思潮。理清它们的起落消长与当代文学观念的调整和艺术方法的革新间的关联,不仅有助于面对未来而且有可能重新激活“传统”,使20世纪中国文学的构架更为清晰、完整。     

Effects of population policy and economic reform on the trend in fertility in Guangdong province,China, 1975–2005

An analysis of data mainly from China's 1990 and 2000 censuses and 2005 mini-census shows how fertility decline between 1975 and 2005 in the province of Guangdong has been influenced by both fertility policy and economic and social development. Guangdong's development since 1975 has been very rapid and has attracted huge numbers of migrants from other provinces. The analysis of the province's fertility trend from 1975 shows clearly the influence of fertility policy on the trend. The analysis also shows that economic development has brought about large changes in population composition by urban/rural residence, education, occupation, and migration status, which, together with large fertility differentials by these characteristics, have contributed substantially to Guangdong's fertility decline, in large part through changes in proportions currently married.     

Support for a Fluid-Continuum Model of Sexual Orientation: A Large-Scale Internet Study

In a study with 17,785 subjects obtained over the Internet from the United States and 47 other countries, Kinsey's hypothesis that sexual orientation lies on a continuum was supported. Self-identifications of subjects as gay, straight, bisexual, and other corresponded to broad, skewed distributions, suggesting that such terms are misleading for many people. Sexual orientation range—roughly, how much flexibility someone has in expressing sexual orientation—was also measured. The results support a fluid-continuum model of sexual orientation, according to which genetic and environmental factors determine both the size of the sexual orientation range and the point at which an individual's sexual orientation is centered on the continuum.