Comparison of preliminary test estimators based on generalized order statistics from proportional hazard family using Pitman measure of closeness

In this article, based on generalized order statistics from a family of proportional hazard rate model, we use a statistical test to generate a class of preliminary test estimators and shrinkage preliminary test estimators for the proportionality parameter. These estimators are compared under Pitman measure of closeness (PMC) as well as MSE criteria. Although the PMC suffers from non transitivity, in the first class of estimators, it has the transitivity property and we obtain the Pitman-closest estimator. Analytical and graphical methods are used to show the range of parameter in which preliminary test and shrinkage preliminary test estimators perform better than their competitor estimators. Results reveal that when the prior information is not too far from its real value, the proposed estimators are superior based on both mentioned criteria.     

On Pitman's measure of closeness of k-records

Pitman closeness of both the upper and lower k-record statistics to the population quantiles of a location–scale family of distributions is studied. For the population median, the Pitman-closest k-record is also determined. In the case of symmetric distributions, the Pitman closeness probabilities of k-record statistics are shown to be distribution-free, and explicit expressions are also derived for these probabilities. Exact expressions are derived for the required probabilities for uniform and exponential distributions. Numerical results are given for these families and also the Pitman-closest k-record is determined.     

On the Nearness of Records to Population Quantiles with Respect to Order Statistics in the Sense of Pitman Closeness

In this paper, Pitman closeness criterion is used to compare the nearness of record values and order statistics from two independent samples to a specific population quantile of the parent distribution while the underlying distributions are the same. General expressions for the associated Pitman closeness probability are obtained when the support of the parent distribution is bounded and also unbounded. Some distribution-free results are achieved for symmetric distributions. The exponential and uniform distributions are considered for illustrative proposes and exact expressions are obtained in each case.     

‘What you need to do is …’: social work students’ reflections on an advice giving audit exercise

This paper reports on qualitative research investigating the advice giving behaviours of social work students. Second-year students, who were enrolled in an interpersonal communication skills course, were required to undertake an ‘advice-giving audit’ exercise across 6 days, with the aim of strengthening their awareness of the interactive nature of advice giving. Students then wrote a diary entry about the frequency of their everyday advice giving behaviour, its intent and reception. Nineteen students provided these reflections for analysis. Findings included three themes pertaining to advice-giving: (i) Giving advice as a natural, comfortable and unconscious way of communicating; (ii) Power and position influences advice dissemination, and (iii) Withholding advice opens, deepens and confuses norms of communication. A fourth theme pertained to the insights that students reported from engaging with the exercise. These findings illustrate the complex interactional process associated with professional advice giving. The research also suggests that experiential activities, which are conducted outside of the classroom, have significant potential to promote the critical examination of embedded communicative practices.     

A qualitative investigation of risk and protective factors for interpersonal violence in adults on the autism spectrum

Abstract

Individuals on the autism spectrum are at an increased risk of experiencing violence. This study sought to understand the opinions of adults on the spectrum regarding potential risk and protective factors for interpersonal violence. Twenty-two adults (12 men; 18 to 53 years of age) participated in semi-structured qualitative interviews. Interviews were recorded, transcribed, and analysed. The results of the qualitative analysis identified individual and contextual risk and protective factors. Protective themes focused on individual needs (awareness of the self and the environment, interpersonal knowledge/skills, skill building strategies) and supportive contexts (benefits of a trusted person, advocates, fostering acceptance and inclusion). There is a need for strategies to decrease the vulnerability to, and the impact of, interpersonal violence. Individuals on the spectrum have the capacity to provide important information regarding safety promotion and risk factors for interpersonal violence, and their expertise should play a role in guiding efforts that promote safety.     

Pitman closeness,monotonicity and consistency of best linear unbiased and invariant estimators for exponential distribution under Type II censoring

Comparisons of best linear unbiased estimators with some other prominent estimators have been carried out over the last 50 years since the ground breaking work of Lloyd [E.H. Lloyd, Least squares estimation of location and scale parameters using order statistics, Biometrika 39 (1952), pp. 88–95]. These comparisons have been made under many different criteria across different parametric families of distributions. A noteworthy one is by Nagaraja [H.N. Nagaraja, Comparison of estimators and predictors from two-parameter exponential distribution, Sankhyā Ser. B 48 (1986), pp. 10–18], who made a comparison of best linear unbiased (BLUE) and best linear invariant (BLIE) estimators in the case of exponential distribution. In this paper, continuing along the same lines by assuming a Type II right censored sample from a scaled-exponential distribution, we first compare BLUE and BLIE of the exponential mean parameter in terms of Pitman closeness (nearness) criterion. We show that the BLUE is always Pitman closer than the BLIE. Next, we introduce the notions of Pitman monotonicity and Pitman consistency, and then establish that both BLUE and BLIE possess these two properties.     

加强礼仪教育，促进大学生人际关系和谐

礼仪教育，有利于提高大学生容纳意识、尊重意识、悦纳他人的能力。目前，大学生礼仪教育、规范的缺失．在一定程度上影响了大学生人际交往和谐，因此，高校要通过教育引导、行为规范、文化渗透等渠道加强大学生礼仪教育，培养具有良好心态、得体风度、高雅气质的高素质人才，为和谐社会建设做出贡献。     

动员式治理中的政府组织传播：南京个案

政府组织传播与社会动员具有内在联系，政府组织推行其政策、主张的过程是一种动员式治理行为，是通过组织间和组织外传播与动员对象进行的有效互动。其中，组织间传播是一种基于人情投资的资源动员，而组织外传播则主要通过人际传播起作用。政府组织在面对面的人际动员实践中既存在“培养典型”等传统群众运动的路径依赖，也利用了情感等多种因素，此外还引入了国家正式权力进行惩戒动员。     

网上招聘广告的人际意义研究

本文主要以Halliday的系统功能语法中的人际功能为理论框架,以在互联网上两大专业招聘网站收集的三十篇招聘广告为语料,从语气、情态及对话性三方面对其进行了人际意义分析,探求了该类广告是如何运用语言手段达到劝说的交际目的.     

对手机媒体的传播学思考

手机媒体是一种继报纸、广播、电视、网络四大媒体之后出现的、以手机为载体的媒体,手机媒体传播的特点是即时的大众传播和人际传播的结合,我们可以称之为"人际大众传播"。本文认为,作为"跨媒体"时代信息传播的重要成员,手机媒体对大众传播的广泛参与,优化了传播过程,弥补了以往大众传播的缺陷,同时也打破了主流媒体原有的传播思路与格局,对主流媒体产生了极大的影响。