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51.
Social Indicators Research - Immigration has been a long-standing contentious issue across the globe. According to a recent report published by the International Organization for Migration (IOM) in... 相似文献
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Hadi Alizadeh Noughabi 《统计学通讯:理论与方法》2017,46(14):7114-7124
To model growth curves in survival analysis and biological studies the logistic distribution has been widely used. In this article, we propose a goodness-of-fit test for the logistic distribution based on an estimate of the Gini index. The exact distribution of the proposed test statistic and also its asymptotic distribution are presented. In order to compute the proposed test statistic, parameters of the logistic distribution are estimated by approximate maximum likelihood estimators (AMLEs), which are simple explicit estimators. Through Monte Carlo simulations, power comparisons of the proposed test with some known competing tests are carried. Finally, an illustrative example is presented and analyzed. 相似文献
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In this paper, we introduce a general goodness of fit test based on Phi-divergence. Consistency of the proposed test is established. We then study some special cases of tests for normal, exponential, uniform and Laplace distributions. Through Monte Carlo simulations, the power values of the proposed tests are compared with some known competing tests under various alternatives. Finally, some numerical examples are presented to illustrate the proposed procedure. 相似文献
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Amir H. Pakpour Isa Mohammadi Zeidi Masoumeh Ziaeiha Andrea Burri 《Journal of sex research》2014,51(6):646-653
The aim of the present study was to investigate the psychometric properties of a translated and culturally adapted Iranian version of the Female Genital Self-Image Scale (FGSIS-I) in a sample of college women. Further, the relationship between women's self-image, body appreciation, sexual functioning, and gynecological exam behavior was explored. A sample of 1,877 female students from five different universities across Qazvin and Tehran completed the Female Sexual Function Index (FSFI), the Body Appreciation Scale (BAS), the Rosenberg Self-Esteem Scale (RSES), the FGSIS-I, and a gynecological exam behavior questionnaire. Good to excellent internal consistency reliability, test-retest reliability, and convergent and construct validity were found. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) both provided a two-factor structure for the FGSIS-I. The validity of the FGSIS-I in predicting gynecological exam behavior of college women was tested using structural equation modeling (SEM). The final model accounted for 33% of the variance in gynecological exam behavior (p < 0.01). In conclusion, the FGSIS-I was found to be a highly valid and reliable instrument to assess female genital self-image in Iranian women. 相似文献
55.
While much of the sociological scholarship on intimacy has been understood in the normative sense of foregrounding and supporting human closeness, this article points to the role intimacy has as a sociological concept to better understand regulatory ties between the subject and the institution. While subject and institution are treated by modernity as distinct entities, separated by the boundary between private and the public, the article elucidates their mutual engagements by reviewing the work on intimacy in the sociology of emotions. Discussing the scholarship on intimacy from this perspective enables us to understand private suffering as a social problem linked to the collective recognition of subjective feelings. To illustrate the point, the article briefly reflects the public discourse on home upended by world-wide stay-at-home orders to contain the spread of coronavirus disease 2019. While this article neither analyzes these orders, nor judges their legitimacy, it takes the particular situation as a chance to review the sociological discussion on the emotional boundaries of home, foregrounding the concept of intimacy. Intimacy is presented as a key sociological category for understanding collective recognition of people's emotions, which impacts the way emotions are seen as relevant and legitimate in public discussions of social problems. 相似文献
56.
Hadi Kooshair Nurizan Yahaya Tengku Aizan Hamid Asnarulkhadi Abu Samah 《Journal of women & aging》2014,26(1):22-38
The aim of this study was to examine the moderating role of gender on relations among social support functions and life satisfaction in older Malaysians. The study sample was 1,800 older residents in a community; all were at least 60 years old. This study was a cross-sectional and corelational survey, and the data were collected by multistage stratified sampling. This study revealed that fewer social support functions, and therefore less life satisfaction, were available for females than for males. The results of moderated regression analyses demonstrated that gender interacted only on the relationship between positive social interaction support and tangible support with life satisfaction. Specifically, at a high tangible support level, females had lower life satisfaction when compared to a low tangible support level. There may be a need for new programs and services to provide other aspects of social support to older female adults to improve and maintain life satisfaction in later life. 相似文献
57.
Hadi Alizadeh Noughabi 《Journal of Statistical Computation and Simulation》2018,88(16):3217-3229
The inverse Gaussian (IG) distribution is widely used to model data and then it is important to develop efficient goodness of fit tests for this distribution. In this article, we introduce some new test statistics for examining the IG goodness of fit based on correcting moments of nonparametric probability density functions of entropy estimators. These tests are consistent against all alternatives. Critical points and power of the tests are explored by simulation. We show that the proposed tests are more powerful than competitor tests. Finally, the proposed tests are illustrated by real data examples. 相似文献
58.
T. H. M. Abouelmagd M. S. Hamed Abd El Hadi N. Ebraheim Ahmed Z. Afify 《统计学通讯:理论与方法》2018,47(14):3293-3304
The inactivity time, also known as reversed residual life, has been a topic of increasing interest in the literature. In this investigation, based on the comparison of inactivity times of two devices, we introduce and study a new estimate of the probability of the inactivity time of one device exceeding that of another device. The problem studied in this paper is important for engineers and system designers. It would enable them to compare the inactivity times of the products and, hence to design better products. Several properties of this probability are established. Connections between the target probability and the reversed hazard rates of the two devices are established. In addition, some of the reliability properties of the new concept are investigated extending the well-known probability ordering. Finally, to illustrate the introduced concepts, many examples and applications in the context of reliability theory are included. 相似文献
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We occasionally find that a small subset of the data exerts a disproportionate influence on the fitted regression model. We would like to locate these influential points and assess their impact on the model. However, the existence of influential data is complicated by the presence of collinearity (see, e.g. [15]). In this article we develop a new influence statistic for one or a set of observations in linear regression dealing with collinearity. We show that this statistic has asymptotically normal distribution and is able to detect a subset of high ridge leverage outliers. Using this influence statistic we also show that when ridge regression is used to mitigate the effects of collinearity, the influence of some observations can be drastically modified. As an illustrative example, simulation studies and a real data set are analysed. 相似文献