‘Having to say everyday … I’m not black enough … I’m not white enough’. Discourses of Aboriginality in the Australian education context

This paper interrogates discourses of Aboriginality about, and by, early career Aboriginal teachers as they negotiate their emergent professional identity in specific Australian school contexts. These discourses position the respondents via their ethnic and cultural background and intersect with self-positioning. This relates to the desire to be positioned as teacher rather than (only) as an ‘Aboriginal’ teacher. Consequently, the over-determination of Aboriginality includes such suppositions as the ‘think-look-do’ Aboriginality with a ‘natural’ connection to community, the ‘good’ Aboriginal teacher who fixes Aboriginal ‘problems’, the Aboriginal teacher as ‘Other’, and [the notion that] ‘Aboriginal work’ as easy, not real work and peripheral to core business. Through qualitative methodology, eleven Aboriginal teachers from the University of Sydney were interviewed. They were able to construct stories of early career teaching and the data was analysed to explore how the participants interpreted, accepted and/or resisted various discourses in their efforts to be agentic and resilient and to make a difference for the Aboriginal students they teach.     

Community Resilience and Decision Theory Challenges for Catastrophic Events

Extreme and catastrophic events pose challenges for normative models of risk management decision making. They invite development of new methods and principles to complement existing normative decision and risk analysis. Because such events are rare, it is difficult to learn about them from experience. They can prompt both too little concern before the fact, and too much after. Emotionally charged and vivid outcomes promote probability neglect and distort risk perceptions. Aversion to acting on uncertain probabilities saps precautionary action; moral hazard distorts incentives to take care; imperfect learning and social adaptation (e.g., herd‐following, group‐think) complicate forecasting and coordination of individual behaviors and undermine prediction, preparation, and insurance of catastrophic events. Such difficulties raise substantial challenges for normative decision theories prescribing how catastrophe risks should be managed. This article summarizes challenges for catastrophic hazards with uncertain or unpredictable frequencies and severities, hard‐to‐envision and incompletely described decision alternatives and consequences, and individual responses that influence each other. Conceptual models and examples clarify where and why new methods are needed to complement traditional normative decision theories for individuals and groups. For example, prospective and retrospective preferences for risk management alternatives may conflict; procedures for combining individual beliefs or preferences can produce collective decisions that no one favors; and individual choices or behaviors in preparing for possible disasters may have no equilibrium. Recent ideas for building “disaster‐resilient” communities can complement traditional normative decision theories, helping to meet the practical need for better ways to manage risks of extreme and catastrophic events.     

Monte Carlo comparison of five exponentiality tests using different entropy estimates

The paper studies five entropy tests of exponentiality using five statistics based on different entropy estimates. Critical values for various sample sizes determined by means of Monte Carlo simulations are presented for each of the test statistics. By simulation, we compare the power of these five tests for various alternatives and sample sizes.     

An adaptive two-sample location-scale test of lepage type for symmetric distributions

For the two-sample location and scale problem we propose an adaptive test which is based on so called Lepage type tests. The well known test of Lepage (1971) is a combination of the Wilcoxon test for location alternatives and the Ansari-Bradley test for scale alternatives and it behaves well for symmetric and medium-tailed distributions. For the cae of short-, medium- and long-tailed distributions we replace the Wilcoxon test and the .Ansari-Bradley test by suitable other two-sample tests for location and scale, respectively, in oder to get higher power than the classical Lepage test for such distribotions. These tests here are called Lepage type tests. in practice, however, we generally have no clear idea about the distribution having generated our data. Thus, an adaptive test should be applied which takes the the given data set inio consideration. The proposed adaptive test is based on the concept of Hogg (1974), i.e., first, to classify the unknown symmetric distribution function with respect to a measure for tailweight and second, to apply an appropriate Lepage type test for this classified type of distribution. We compare the adaptive test with the three Lepage type tests in the adaptive scheme and with the classical Lepage test as well as with other parametric and nonparametric tests. The power comparison is carried out via Monte Carlo simulation. It is shown that the adaptive test is the best one for the broad class of distributions considered.     

中美大学生权力距离对比研究

在跨文化研究理论中，Hofstede提出的民族文化五维度是被广为接受的研究成果。根据权力距离维度理论，权力距离可以用权力距离指数来显示，他认为中国的权力距离指数高于美国。随着中国经济环境的变化和对外开放进程的加快，文化也会不断发展和变化。因此，在新的环境下研究中美权力距离差异具有现实意义。为了对比当下中美大学生的权力距离感知，在中美两所大学发放调查问卷，分别考察了两组学生对于教师、长者和家长所拥有权力的态度，并用SPSS对调查数据进行分析。结果发现，对于教师和长者，中国学生的权力距离显著高于美国学生，但是对于家长，两国学生并未表现出明显差异，这与Hofstede的研究结果不符。     

The Poisson-X family of distributions

ABSTRACT

Recently, Risti? and Nadarajah [A new lifetime distribution. J Stat Comput Simul. 2014;84:135–150] introduced the Poisson generated family of distributions and investigated the properties of a special case named the exponentiated-exponential Poisson distribution. In this paper, we study general mathematical properties of the Poisson-X family in the context of the T-X family of distributions pioneered by Alzaatreh et al. [A new method for generating families of continuous distributions. Metron. 2013;71:63–79], which include quantile, shapes of the density and hazard rate functions, asymptotics and Shannon entropy. We obtain a useful linear representation of the family density and explicit expressions for the ordinary and incomplete moments, mean deviations and generating function. One special lifetime model called the Poisson power-Cauchy is defined and some of its properties are investigated. This model can have flexible hazard rate shapes such as increasing, decreasing, bathtub and upside-down bathtub. The method of maximum likelihood is used to estimate the model parameters. We illustrate the flexibility of the new distribution by means of three applications to real life data sets.     

论特色文化城市理论体系建构研究与实践创新——中国本土化特色文化核心价值的理论体系与范式建构

本文从世界新文化产业分工理论和"城市文化资本"理论的双重视角出发,首次提出了本土化特色文化城市理论的结构框架、研究与建构入径、新的理论内核,特别是在总结、研究、比较国内外特色文化城市发展的历史经验和理论研究成果的前提下,提出了中国本土化的特色文化城市的核心价值论、"双核理论"和特色文化城市的理论研究与建构操作的整体范式。     

A Five-Decision Testing Procedure to Infer the Value of a Unidimensional Parameter

ABSTRACT

A statistical test can be seen as a procedure to produce a decision based on observed data, where some decisions consist of rejecting a hypothesis (yielding a significant result) and some do not, and where one controls the probability to make a wrong rejection at some prespecified significance level. Whereas traditional hypothesis testing involves only two possible decisions (to reject or not a null hypothesis), Kaiser’s directional two-sided test as well as the more recently introduced testing procedure of Jones and Tukey, each equivalent to running two one-sided tests, involve three possible decisions to infer the value of a unidimensional parameter. The latter procedure assumes that a point null hypothesis is impossible (e.g., that two treatments cannot have exactly the same effect), allowing a gain of statistical power. There are, however, situations where a point hypothesis is indeed plausible, for example, when considering hypotheses derived from Einstein’s theories. In this article, we introduce a five-decision rule testing procedure, equivalent to running a traditional two-sided test in addition to two one-sided tests, which combines the advantages of the testing procedures of Kaiser (no assumption on a point hypothesis being impossible) and Jones and Tukey (higher power), allowing for a nonnegligible (typically 20%) reduction of the sample size needed to reach a given statistical power to get a significant result, compared to the traditional approach.     

Collective Bargaining and the Gender Pay Gap in the Printing Industry

This paper considers the effect of collective bargaining on the gender pay gap in the printing industry. This sector was subject to multi‐employer bargaining for around 90 years, until 2010. The article analyses gendered collective bargaining processes through the mechanism of symbolic power, that is, the power of interpretation and definition, and utilizes Walton and McKersie's seminal work on bargaining behaviour to understand the processes that have prevented the closing of the pay gap. It finds that symbolic power operates within the sub‐processes of attitudinal structuring and intra‐organizational bargaining to de‐legitimize women's role in equal pay bargaining, alongside distributive bargaining tactics that preclude equal pay bargaining, thereby creating the impression that women are irrelevant to bargaining processes and ensuring relative invisibility for issues of importance to equality bargaining.     

Modeling stereotypes and negative self‐stereotypes as a function of interactions among groups with power asymmetries

Stereotypes is one of the most researched topics in social psychology. Within this context, negative self‐stereotypes pose a particular challenge for theories. In the current work, we propose a model that suggests that negative self‐stereotypes can theoretically be accounted for by the need to communicate in a social system made up by groups with unequal power. Because our theory is dynamic, probabilistic, and interactionist, we use a computational simulation technique to show that the proposed model is able to reproduce the phenomenon of interest, to provide novel accounts of related phenomena, and to suggest novel empirical predictions. We describe our computational model, our variables' dynamic behavior and interactions, and link our analyses to the literature on stereotypes and self‐stereotypes, the stability of stereotypes (in particular, gender and racial stereotypes), the effects of power asymmetries, and the effects of intergroup contact.