Improved unbiased estimators in adaptive cluster sampling

Summary.  The usual design-unbiased estimators in adaptive cluster sampling are easy to compute but are not functions of the minimal sufficient statistic and hence can be improved. Improved unbiased estimators obtained by conditioning on sufficient statistics—not necessarily minimal—are described. First, estimators that are as easy to compute as the usual design-unbiased estimators are given. Estimators obtained by conditioning on the minimal sufficient statistic which are more difficult to compute are also discussed. Estimators are compared in examples.     

Multi‐agency information practices in children's services: the metaphorical ‘jigsaw’ and professionals quest for a ‘full’ picture

As there are a number of high‐profile public inquiries into child death tragedies, ‘information sharing’ has now become a moral and political imperative across England and Wales for improving the welfare and protection of children. This paper discusses multi‐agency information practices, at the stage of referral, which were observed and documented in the day‐to‐day practice of child protection work. Drawing on transcribed, professional narrative accounts, a ‘jigsaw’ metaphor is used to describe the process of piecing information together to ascertain a ‘full’ picture of children and families lives. However, these accounts highlight that there is something of a mismatch between the jigsaw, as articulated in the conceptual abstract accounts, and jigsaw practices operating on the ground. It is argued that abstracting professional information practices from situated contexts creates impoverished understandings of these practices. Thus, reported findings in this paper highlight the inherent complexities of jigsaw practices in the ‘everyday’ of child protection work, which challenges objectivist assumptions about a stability of meaning, and further highlight that the ‘endpoint’ of reaching a ‘full’ picture of a child's life is not fixed, nor does it have the same meaning for all professionals, but rather it is a complex process involving sense‐making, translation in context and organizational relevance.     

Data Envelopment Analysis for Composite Indicators: A Multiple Layer Model

The development of a composite indicator (CI) over a set of individual indicators is worthwhile in case the methodological aggregation process is sound and the results are clear. It can then be used as a powerful tool for performance evaluation, benchmarking, and decision making. In this respect, data envelopment analysis (DEA), as a self appraisal technique, has recently received considerable attention in the construction of CIs for policy analysis and public communication. However, due to the ever increasing complexity of numerous performance evaluation problems, more and more potential indicators might be developed to represent an evaluation activity in a more comprehensive way. These indicators might also belong to different categories and further be linked to one another constituting a multilayer hierarchical structure. Simply treating all the indicators to be in the same layer as is the case in the basic DEA model thereby ignores the information on their hierarchical structure, and further leads up to weak discriminating power and unrealistic weight allocations. To overcome this limitation, a multiple layer DEA-based CI model is developed in this study to embody a hierarchical structure of indicators in the DEA framework, and both its primal and dual form are realized. The proposed model is illustrated by constructing a composite road safety performance index for a set of European countries.     

REPRESENTING GANGS IN THE NEWS: MEDIA CONSTRUCTIONS OF CRIMINAL GANGS

This research, based on a content analysis of 4,445 newspaper articles, examines the images that emerge from stories of criminal gangs and societys responses to them. Eight recurrent themes were identifed. It was discovered that articles devoted to the coverage of gang crimes were outnumbered by stories dealing with various community responses. Articles reporting the results of scientifc research on gangs constituted the smallest category. The results are discussed in light of their importance in the construction of social problems discourse and the maintenance of symbolic power and social control.     

THE PARADOX OF THE CONTENTED FEMALE WORKER IN A TRADITIONALLY FEMALE INDUSTRY

Small support groups are a relatively new form of voluntary association appearing in the American landscape. Examining the larger implications of the “small group movement” for civic life has led some to see an overall positive effect on wider community activities, while others have viewed small-group participants as self-absorbed and withdrawing from participation in civic activities. Using a national sample of small-group participants, we examine the effects on civic engagement stemming from the social characteristics of participants, the type of small group (religious, secular, or mixed), and the opportunity to develop social capital through participation in small groups. Findings indicate that members of religious small groups do not actively engage in civic affairs, but members of secular and mixed groups do participate in a broad range of civic activities. Differences in social participation can be attributed to characteristics of the small groups (formalization and cohesion) and to some characteristics of members (education). When small support groups offer members the opportunity to acquire civic skills, to exchange information, and to develop self-efficacy, there is more interest and activity in civic affairs.     

Race,Socioeconomic Status,and Self-Esteem: The Impact of Religiosity

This research examines two factors that have an impact on the self-esteem of African Americans and whites: religion and socioeconomic status (SES). Using data from the National Survey of Families and Households, we find that for whites, belief in the Bible (i.e., that it is the literal word of God) and self-identifying as fundamentalist were significant predictors of self-esteem. For African Americans, belief in the Bible and being Catholic were significant predictors of self-esteem. However, the association between belief in the Bible and self-esteem was stronger for African Americans than whites. SES was positively associated with self-esteem for both groups. The interactions between SES and the measures of religiosity reveal a greater impact on self-esteem for lower SES respondents. This was especially true for African Americans. These findings are discussed in light of the resource compensation hypothesis.     

Professional Development in the Contemporary Educational Context: Encouraging Practice Wisdom

Preparing social work students to be effective practitioners is a complex and challenging task undertaken in a dynamic environment both in terms of the field of social work and the higher education sector. There have been recommendations that self knowledge, empirical knowledge, theoretical knowledge and procedural knowledge are the keys to high standards of social work practice. This paper suggests that the concept of practice wisdom is a useful focus for integrating these different aspects of informed practice and for focusing educational programmes for social work. As practice wisdom is more about process than possessed characteristics then there are important motivational and value-based considerations in developing wise practitioners. This discussion considers motivational and personal narrative aspects of practice wisdom so that it can be integrated into social work teaching.     

Historical writing on migration into the commonwealth Caribbean: A bibliographical review of the period c.1838‐c.1938

For almost a century after slave emancipation in the Commonwealth Caribbean a steady stream of immigrants entered the colonies, from such diverse places as India, Africa, Europe, China, North America, Syria and Lebanon. Historical scholarship on these migrants has concentrated heavily on the Indians, while almost completely neglecting the Syrian/Lebanese. Moreover, the main emphasis has been on the economic roles of the migrants within the dominant plantation sector. Recently, however, increasing attention has been focused on the non‐plantation sectors, while interesting and scholarly work is also emerging on the socio‐cultural aspects of immigrant society. Much research still needs to be done on migrants into the smaller Caribbean islands. Although small in number by comparison with those migrating to Guyana and Trinidad, a knowledge of their roles in and adaptation to their host societies will help us to understand more fully the impact of post‐emancipation migration on the Commonwealth Caribbean.     

Fraternity Membership and Sexual Aggression: An Examination of Mediators of the Association

Abstract

Objective: This prospective study examined attitudes (ie, hostility toward women, acceptance of rape myths), peer influences (ie, peer pressure to have sex, peer approval of forced sex), and risky behaviors (ie, high-risk alcohol use, number of sexual partners) as possible mediators of the association between fraternity membership and sexual aggression. Participants: The sample included 424 males recruited as freshmen from a large state university in the southeastern United States. Methods: Respondents completed survey measures in their first, second, and third years of enrollment at the university. Results: Path analyses revealed that the prospective effect of fraternity membership on sexual aggression was mediated by high-risk alcohol use. Conclusions: The findings indicate that high-risk alcohol use accounts for much of the association between fraternity membership and sexual aggression.     

Development of a Measure of College Students' Adherence to Religious Doctrine Concerning Sexual Behavior

Abstract

Objective: The authors developed a 14-item measure of adherence to religious doctrine concerning sexual behavior (ARDSB). The ARDSB psychometric properties were investigated to better understand religious motivations associated with changes in sexual behavior that may provide support for sexual health promotion and prevention programs. Participants: Four hundred eighty-three undergraduates aged 18 to 26. Methods: Data were collected from an online survey during the 2012–2013 academic school year. Results: Principle components factor analysis identified 2 factors: reasons to break religious doctrine and reasons to adhere to religious doctrine concerning sexual behavior. The subscales had good internal consistency. Correlations, t tests, and analyses of variance of the subscales with measures of intrinsic and extrinsic religiosity and self-reported sexual behavior and risk provide support for concurrent validity. Conclusions: The ARDSB could be employed as a measure to better understand sexual behavior; it is inexpensive and relatively easy to employ in both research and campus ministry settings.