On extropy properties of ranked set sampling

Ranked set sampling is a sampling design that allows the experimenter to span the full range values in the population and it can be used widely in industrial, environmental and ecological studies. In this paper, we consider the information content of ranked set sampling in terms of extropy measure. It is shown that the ranked set sampling performs better than its simple random sample counterpart of the same size. Monotone properties and stochastic orders are investigated. Sharp bounds on the extropy of RSS data based on the projection method in the non-parametric set-up as well as Steffensen inequalities in the parametric context are established. The extropy measure can also be used as a discrimination tool between RSS and SRS data.     

Marriage and Family Formation of the Second‐Generation Afghans in Iran: Insights from a Qualitative Study

In 2006, around 1.2 million documented Afghans remained in Iran, of whom half were second generation. This paper is based on the results of a qualitative study conducted in three settings: Tehran, Mashhad and Isfahan, and draws on data collected via 80 in‐depth interviews and six focus group discussions with second generation Afghans in Iran. The aim of the paper is to explore the adaptation of second‐generation Afghans in Iran, particularly in relation to marriage and family formation. The results show that educational achievements and occupational skills of the second‐generation Afghans in Iran facilitated their adaptation to the host society, and inspired different marriage and family behaviors and aspirations in comparison with the first generation.     

Factors Influencing Interorganizational Collaboration within a Disaster Relief Context

Despite the need for interorganizational collaboration within a humanitarian setting in recent years, there are a considerable number of challenges to efficient collaboration among humanitarian organizations (HOs) operating after natural disasters. Up to this point, scholars have explored the inhibitors and drivers of collaboration in a number of papers and reports that have primarily served to provide a list of factors that influence collaboration within a disaster relief context. Since each list is partial or limited, we conducted this meta-study to advance and frame knowledge on collaboration among HOs, to trace the gap of the literature and to initiate further studies on this topic. Our systematic literature review proposes a categorization of the factors influencing collaboration among HOs. It contains three clusters of factors: (1) contextual factors; (2) interorganizational factors; and (3) inner-organizational factors. In the last section, we elaborate on opportunities for future research on collaboration among HOs.     

Repetitive group sampling plan based on the process capability index for the lot acceptance problem

An acceptance sampling plan is a method used to make a decision about acceptance or rejection of a product, based on adherence to a standard. Meanwhile, process capability indices (PCIs) have been applied in different manufacturing industries as capability measures based on specified criteria which include process departure from a target, process consistency, process yield and process loss. In this paper, a repetitive group sampling (RGS) plan based on PCI is introduced for variables’ inspection. First, the optimal parameters of the developed RGS plan are obtained considering constraints related to the risk of consumers and producers and also a double sampling plan, a multiple dependent state sampling plan and a sampling plan for resubmitted lots have been designed. Finally, after the development of variable sampling plans based on the Bayesian and exact approach, a comparison study has been performed between the developed RGS plan and other types of sampling plans and the results are elaborated.     

Group Dynamics in Development of the Poor: Experience from BRAC

The groups deliberately formed by nongovernmental organizations to organize the poor for their development are often subgrouped for better performance. In this connection, the study investigates the extent subgroups contribute to group performance, the mechanisms that lead to the contribution of subgroups to group performance, and changes in the contribution of subgroups to the performance of a group. Altogether 239 Bangladesh Rural Advancement Committee groups, i.e., village organizations (VOs), with and without subgroups were investigated. The VOs with subgroups performed better than those without subgroups. The performance of the VOs with subgroups, however, declined over time. One of the reasons why effectiveness of VOs with subgroups declined was the belief that pursuing subgroup responsibilities would not bring any personal gain for members.     

Multilevel zero-inflated negative binomial regression modeling for over-dispersed count data with extra zeros

Count data with excess zeros often occurs in areas such as public health, epidemiology, psychology, sociology, engineering, and agriculture. Zero-inflated Poisson (ZIP) regression and zero-inflated negative binomial (ZINB) regression are useful for modeling such data, but because of hierarchical study design or the data collection procedure, zero-inflation and correlation may occur simultaneously. To overcome these challenges ZIP or ZINB may still be used. In this paper, multilevel ZINB regression is used to overcome these problems. The method of parameter estimation is an expectation-maximization algorithm in conjunction with the penalized likelihood and restricted maximum likelihood estimates for variance components. Alternative modeling strategies, namely the ZIP distribution are also considered. An application of the proposed model is shown on decayed, missing, and filled teeth of children aged 12 years old.     

Localising Social Work: Lessons Learnt from a Community Based Intervention amongst the Bedouin in Jordan

This paper presents an example of local social work practice in Jordan in the health field. It draws on a research study on Bedouin health in the North Eastern Badia. The project developed, implemented and evaluated a training intervention developed in partnership with a range of providers for improving local social work practice. Evaluation methods used included a pre and post test, focus group discussions and students' field notes. Findings revealed the significance of promoting culturally competent practice to respond to local health and social needs. Students and practice assessors agreed that the training interventions were an effective way to implement theory into local practice in relation to Bedouin society. This training intervention is an example of developing local social work practice as a way of responding critically to social inequalities.     

The Effect of Activating Metacognitive Strategies on the Listening Performance and Metacognitive Awareness of EFL Students

This study investigates the effect of activating metacognitive strategies on the listening performance of English as a foreign language (EFL) university students and explores the impact of such strategies on their metacognitive awareness of the listening task. The participants were N = 50 students of English literature at the state university of Qom, Iran. After screening the participants from among 60 students, they were randomly assigned to the experimental and control groups. The experimental group (n = 25) received the metacognitive strategy instruction based on the models proposed by Vandergrift and Tafaghodtari (2010), while the control group (n = 25) received just the listening input with no strategy instruction. The listening module of the International English Language Testing System (IELTS) was utilized to evaluate the listening performance of the participants in both groups in pretests and posttests, and the Metacognitive Awareness Listening Questionnaire (MALQ) instrument was applied to measure the metacognitive awareness of the treatment group before and after the treatment. The results of the IELTS test revealed that the experimental group significantly outperformed the control group on the posttest and according to the analysis of the MALQ instrument there was a significant improvement in the students’ level of metacognitive awareness after strategy instruction. The interview results in the discussion section also supported the findings and shed more light on the details.