Life Satisfaction Among University Students in a Canadian Prairie City: a Multivariate Analysis

This article reports the findings from a questionnaire survey of university students’ life satisfaction in Regina. The results demonstrated that a significant proportion of the 315 respondents were satisfied with their lives (N = 240, 76.2%). With regard to degree of satisfaction with different aspects of life, respondents expressed that they were most satisfied with relationship with mother, living environment, relationships with close friends, relationships with siblings, and living arrangement. Multiple ordinary least-squares regression analyses revealed that respondents who indicated a higher socio-economic status, achieveda higher grade point average, and were more satisfied with their academic experience, self-esteem, relationship with significant other, and living conditions, expressed a markedly higher level of satisfaction with life.     

A study on IUD retention by curve-fitting

In order to estimate the demographic impact of IUD, there is a need for estimating IUD retention rates beyond the period of actual observation. This article describes a mixed exponential function for this purpose. With this function of IUD retention, it is possible to estimate the “life expectancy” and “half-life” of an IUD. Another important concept is the “cut-off date”, introduced in estimating the “life expectancy” because in practice no IUD will be worn by a woman forever.     

企业战略、人力资源管理系统与企业绩效的关系研究

有关战略人力资源管理的研究认为,企业通过人力资源实践活动之间的契合,及它们与企业目标之间的契合,可以获得高附加值、稀缺性、难以模仿和不可替代的竞争优势。本研究采用形态理论的方法探讨人力资源管理实践组合与企业战略之间的最佳契合模式.研究发现,不仅企业战略对人力资源实践组合有显著影响,而且人力资源管理系统与企业战略的交互作用对企业利润和销售额增长率也有显著影响。本研究的结论在一定程度上支持了人力资源管理系统与企业战略的交互作用有助于提升企业绩效的观点。     

A Graphical Display of Large Correlation Matrices

This department includes the two sections New Development in Statistical Computing and Statistical Computing Software Reviews; suitable contents for each of these sections are described under the respective section heading. Articles submitted for the department, outside the two sections, should not be highly technical and should be relevant to the teaching or practice of statistical computing.

Large correlation matrices are hard to look at. In this article we present correlations as elliptical glyphs for a simple intuitive display of large matrices.     

Approximate Identifiability, Moments and Censored Data

It is well known that the joint distribution of a pair of random variables ( X,Y ) is not identifiable on the basis of the joint distribution of the function (min ( X,Y ), 1[ X < Y ]). This paper introduces the concept of approximate identifiability and studies its relevance to the function (min ( X,Y ), Y ). It shows that the distribution of ( X,Y ) is approximately identifiable on the basis of the distribution of (min ( X,Y ), Y ). The identification is explicitly executed by a method of moments. The method is applied to the analysis of censored distributions arising in the theory of clinical trials and is compared to the standard method of Kaplan and Meier.     

Choice of Money Transfer Methods in the Case of Albanian Immigrants in Greece

This paper investigates the choice of the method that immigrants use for the transfer of savings to their home country. The paper examines the example of Albanian immigrants in Greece using a sample of permanent and seasonal immigrants. Three methods were proposed to the immigrants: the banking network, money transfer companies and hand carried transfer by their or a relative’s return in Albania. Cost and quickness of transfer were considered as a parameter for the choice. The paper finds that despite the growth of remittances through the official network and the growth of this network in Albania, immigrants prefer to send money through the parallel market by their return or a relative’s in Albania. Within the official market, permanent immigrants are more likely to use the banking network while seasonal immigrants prefer to use the money transfer companies’ network.     

On the assessment of variability in bioavailability/bioequivalence studies

A procedure is proposed for the assessment of bioequivalence of variabilities between two formulations in bioavailability/bioequivalence studies. This procedure is essentially a two one-sided Pitman-Morgan’s tests procedure which is based on the correlation between crossover differences and subject totals. The nonparametric version of the proposed test is also discussed. A dataset of AUC from a 2×2 crossover bioequivalence trial is presented to illustrate the proposed procedures.     

The Role Structure of Chinese Managers

The study investigates the role structure of managers in China's Henan province. The results produce a two-facet classification consistent with Shapira and Dunbar's findings for North American managers, yet displaying a number of unique features attributed to the Chinese business environment. The leader's role of the Chinese manager splits into task-related and relationship-oriented activities, and the monitor role is plotted across the informational and decision facets. An addition to this study, the political role is also found across the two facets, providing integration across the various managerial activities. An open system model of the Chinese managerial role is proposed.     

Assessing departure from dose linearity under a repeated measures incomplete block design

Dose proportionality/linearity is a desirable property in pharmacokinetic studies. Various methods have been proposed for its assessment. When dose proportionality is not established, it is of interest to evaluate the degree of departure from dose linearity. In this paper, we propose a measure of departure from dose linearity and derive an asymptotic test under a repeated measures incomplete block design using a slope approach. Simulation studies show that the proposed method has a satisfactory small sample performance in terms of size and power.