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排序方式: 共有139条查询结果,搜索用时 15 毫秒
1.
Statistical Methods & Applications - While matrices are usually used as the basic data structure for experiments with repeated measurements or longitudinal data, testing methods for the... 相似文献
2.
Mahdi Rasekhi Rahim Chinipardaz Sayed Mohammad Reza Alavi 《Statistical Methods and Applications》2016,25(3):375-394
The skew normal distribution of Azzalini (Scand J Stat 12:171–178, 1985) has been found suitable for unimodal density but with some skewness present. Through this article, we introduce a flexible extension of the Azzalini (Scand J Stat 12:171–178, 1985) skew normal distribution based on a symmetric component normal distribution (Gui et al. in J Stat Theory Appl 12(1):55–66, 2013). The proposed model can efficiently capture the bimodality, skewness and kurtosis criteria and heavy-tail property. The paper presents various basic properties of this family of distributions and provides two stochastic representations which are useful for obtaining theoretical properties and to simulate from the distribution. Further, maximum likelihood estimation of the parameters is studied numerically by simulation and the distribution is investigated by carrying out comparative fitting of three real datasets. 相似文献
3.
Mohammad Reza Mahmoudi Marziyeh Mahmoudi Abbas Pak 《Journal of Statistical Computation and Simulation》2019,89(12):2280-2292
Classifying several regression models fitted on a dataset is one of the most problems in data analysis. In other words, scientists are interested in comparing several regression models that can be used for a dataset. In this paper, an approach will be used to compare and classify several dependent regression models. Then the performance of the proposed method is investigated using simulation study and real example. 相似文献
4.
M. Reza Nakhaie 《Journal of Family and Economic Issues》2009,30(4):399-411
This paper presents, for the first time, multivariate analyses of Canadian national data and tests the relationship between
class-based egalitarianism and housework for married and cohabiting male and female university professors in 2000. Consistent
with evidence in the general population, gender accounts for more variation in housework than a host of other predictors (i.e.,
class- and gender-based ideology, institutional contexts and resources, available time, presence of children, age, minority
racial status, and religiosity). Nevertheless, these forces play important roles in increasing or decreasing domestic labor
contributions of both male and female academics. Among these, professors who possess class-based egalitarian views do more
housework, and egalitarianism increases domestic labor contributions of males and decreases that of females. 相似文献
5.
6.
Jennifer Y. J. Hsu Carolyn L. Hsu Reza Hasmath 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2017,28(3):1157-1179
This study argues that different cities in China have different resource environments available for NGOs. Organizations react to these resource environments by constructing appropriate resource strategies, which in turn shape the characteristics and structures of the NGOs of that city. It further examines how these characteristics and structures influence the construction and performance of citizenship in an authoritarian environment. Specifically, some types of NGOs encourage Chinese citizens to be passive, while others offer a model for people to actively engage with social issues. This is aptly demonstrated in an analysis of NGOs operating across four cities—Beijing, Shanghai, Kunming, and Nanjing—which reveals three different types of resource environments and behavioral models for NGOs. We subsequently discuss the implications of each model for citizen engagement. 相似文献
7.
This article is concerned with the comparison of P-value and Bayesian measure in point null hypothesis for the variance of Normal distribution with unknown mean. First, using fixed prior for test parameter, the posterior probability is obtained and compared with the P-value when an appropriate prior is used for the mean parameter. In the second, lower bounds of the posterior probability of H0 under a reasonable class of prior are compared with the P-value. It has been shown that even in the presence of nuisance parameters, these two approaches can lead to different results in the statistical inference. 相似文献
8.
9.
Effect of Sociocultural Context and Parenting Style on Scholastic Achievement among Iranian Adolescents 总被引:1,自引:0,他引:1
Seyed Mohammad Assadi Nayereh Zokaei Hossein Kaviani Mohammad Reza Mohammadi Padideh Ghaeli Mahmood Reza Gohari Fons J. R. van de Vijver 《Social Development》2007,16(1):169-180
School grades, family demographics and responses to the parental authority questionnaire were assessed in 240 eighth‐grade students in the southern, central and northern parts of Tehran, Iran's capital. The result showed that poorer families with traditional values had more authoritarian attitudes toward parenting than richer families with more modern values. In contrast to the studies conducted in East Asian societies, the current study found that authoritative parenting was the style associated with the highest academic outcome. Tests of mediation and moderation effects showed that the relation between parenting style and academic outcome was independent of sociocultural context. 相似文献
10.
Sushil Gupta Martin K. Starr Reza Zanjirani Farahani Niki Matinrad 《Production and Operations Management》2016,25(10):1611-1637
We have reviewed disaster management research papers published in major operations management, management science, operations research, supply chain management and transportation/logistics journals. In reviewing these studies, our objective is to assess and present the macro level “architectural blue print” of disaster management research with the hope that it will attract new researchers and motivate established researchers to contribute to this important field. The secondary objective is to bring this disaster research to the attention of disaster administrators so that disasters are managed more efficiently and more effectively. We have mapped the disaster management research on the following five attributes of a disaster: (1) Disaster Management Function (decision‐making process, prevention and mitigation, evacuation, humanitarian logistics, casualty management, and recovery and restoration), (2) Time of Disaster (before, during and after), (3) Type of Disaster (accidents, earthquakes, floods, hurricanes, landslides, terrorism and wildfires etc.), (4) Data Type (Field and Archival data, Real data and Hypothetical data), and (5) Data Analysis Technique (bidding models, decision analysis, expert systems, fuzzy system analysis, game theory, heuristics, mathematical programming, network flow models, queueing theory, simulation and statistical analysis). We have done cross tabulations of data among these five parameters to gain greater insights into disaster research. Recommendations for future research are provided. 相似文献