Sequential analysis applied to testing the mean of a mormal population with known coefficient of variation

Given a normal population with mean y and known coefficient of variation the hypothesis H₀:μ=μ₀ is tested against H₁:μ=μ₁ using the sequential probability ratio test. The maximum of the expected sample number is shown to occur when μ is approxi¬mately equal to the harmonic mean of μ₀ and μ₁ and it is shown that this maximum value depends on μ₀ and μ₁, only through and it is found that the above test might be used to test H₀:μ≦μ₀ yntheir ratio. The operating characteristic function is investigated and it is found that the above test might be used to test against H₁:μ≧μ₁.     

Ghosts in the nursery revisited

In the last decades new research findings have illuminated many of the factors that affect the mental health development of the pre-verbal child. Attachment theory has emerged as a central concept which has great applicability to the clinical field of infant-mental health. The new knowledge base has been utilized by clinical research programs to develop new models of clinical intervention programs with infants-at-risk and their families. This article describes some of the theoretical and research findings which can be translated to, and enhance, traditional child welfare practice. The theoretical considerations are illustrated by case examples.     

Improving family planning services to rural adolescents

A longitudinal study conducted among young women and family planning service providers in 3 rural New York counties underscored the need to pay attention to individual differences among the clients served. Barriers to family planning acceptance in these counties included factors such as poor public transportation, long distances to clinic, and no telephone in many households that the urban population does not confront. The 900 young women in the sample were categorized as unserved, underserved, adequately served, or well served with regard to their family planning needs. A comparison of psychometric and survey data from these respondents indicated that clinic clients tended to be unmarried, to have a higher personal income, and have fewer children than their counterparts who were contraceptive nonusers. In addition, nonacceptors who completed the Future Events Test expected more positive events never to happen and made less use of planning for the future than the young women who were clients of the family planning clinic in their county. Although qualitative evaluation and participant-observation revealed significant differences between the 3 counties in terms of their family planning services, the distribution of women in the 4 categories did not differ among counties. Overall, these findings indicate that personality characteristics rather than situational variables are the best predictors of success or failure in taking steps to avoid unwanted pregnancy. For young women who are assessed at intake as lacking sufficient motivation to follow through on contraception, clinic personnel should develop an individualized plan aimed at providing education and raising self-esteem and optimism about control over future events.     

Gender Differences in Policy Preferences: A Summary of Trends from the 1960s to the 1980s

Using 267 repeated policy questions (962 time points), we examinegender differences in policy choices and how they have changedfrom the 1960s to the 1980s. The average gender difference inpreferences toward policies involving the use of force haveconsistently been moderately large. Sex differences in opiniontoward other policies—regulation and public protection,"compassion" issues, traditional values—have been approximatelyhalf as large but they also warrant more attention than in thepast. Our analysis suggests that the salience of issues hasincreased greatly for women, and as a result differences inpreferences have increased in ways consistent with the interestsof women and the intentions of the women's movement.     

Norma Lang’s Use of Nondeliberative Approaches: Through a Multidimensional Lens of Activity in Social Work Groups

ABSTRACT

This article is intended to enter into a conversation with the significant work done by Norma Lang on nondeliberative approaches in social work with groups, and, in particular, her use of these approaches in working with people who have limited social skills. The intention is to locate significant strands of her conceptualizing, teaching, and practice within a discussion of the concept “activity”—a concept that social work with groups has uniquely contributed to social work theory and practice. It is proposed that aspects of “activity” can be more fully understood and analyzed using a number of intersecting dimensions: interaction, purpose, meaning, and analog.     

Ethical challenges in international HIV prevention research

Members of an HIV-prevention research network were asked to describe ethical challenges faced in their work. Major themes included acceptable standards of care for participants, defining research of relevance to host countries, reducing risks related to stigma, designing research that meets local needs without contributing to an inadequate status quo, and ensuring informed consent for complex research with potentially vulnerable participants. The challenges are interrelated and highlight the need for innovative, practical strategies to be incorporated into the planning, design, and conduct of HIV prevention trials. Research in applied ethics to support decision-making about HIV prevention research is needed, along with ethics training, mechanisms to support community-wide benefit from research, and expanded dialog on ethics surrounding HIV prevention and public health research.     

The downside of managed mental health care

This article provides and analysis of the diffuculties caused by an attempt to combine professional and corporate cultural values in managed mental health care. It encourages the reader to think critically about the ethical, administrative, clinical, and practical issues which invevitably arise when these two cultures collide. It further suggests that although utilization review claims to provide cost-containment and consumer protection, in actuality is exists to protect profit, for the managed care company by providing disincentives for seeking and accessing necessary treatment. Finally, there is an exploration of the manner in which managed care companies manipulate virous segments of the healthcare system against one another in order to maximize profit. An alternative model is suggested.     

NATIONAL TIMES AND OTHER TIMES: RE-THINKING CITIZENSHIP

Citizenship is a temporal as well as spatial phenomenon. While it conceptually located in a legal, territorial entity, within which it is associated with the privileges of sovereignty and the rights of individuals, it is also understood is terms of the historical process by which peoples develop shared characteristics. However, the attempt to code citizenship interms of shared cultural backgrounds belies the ways in which citizen-subjects are temporally disjunctive. Beginning with attention to the way some writing practices challenge the state system's monopoly over the meaning of citizen presence in time and space, this essay turns to a reading of an Israeli woman's novelistic treatment of a geographically and culturally diverse Jewish family, whose characteristics challenge the State of Israel's myth of national homogeneity. Ronit Matalon's, The One Facing Us, which juxtaposes a version of what Julia Kristeva calls ‘women's time’ with the historical time of the state, restores the diverse forms of co-presence that are denied in the discourses of nation-state legitimation. Her novel, along with the other genres treated in this analysis, encourages an understanding of politics that resists the identity-fixing effect of a state-oriented model of political space and the homogenizing of the temporal presence of citizen-subjects. More generally, the writing performances treated in this essay cast political interaction as a continuous negotiation of co-presence among those with diverse ways of being-in-time.