Female‐Headed Families and Poverty in Rural America*

Abstract Employing data from the 1980, 1990, and 2000 March supplements of the Current Population Surveys, this study examines changing household and family structure in metro and nonmetro areas and corresponding changes in poverty, emphasizing female‐headed families with children under age 18. We also pay particular attention to the structure and economic conditions of subfamilies with children during this period. Household and family structure in suburban metro and nonmetro areas were quite similar by 2000. In contrast, families and households in nonmetro and metro central city areas were similar in their high prevalence of poverty. Finally, the risk of female‐headed families and subfamilies with children living in poverty is highest for nonmetro residents, and their individual characteristics suppress rather than account for this disadvantage. This pattern persisted across the decades studied, despite economic growth during the 1990s.     

GPs' and health visitors' participation in child protection case conferences

This study was conducted in two related but separate phases. Phase one compared the frequency and type of participation by general practitioners and health visitors in child protection case conferences. Two hundred consecutive case conferences involving 83 general practitioners from 33 practices were independently reviewed and scored to assess the level of general practitioner and health visitor participation, whether by written report and/or by attendance. Health visitors showed a far higher level of participation in case conferences than general practitioners and their attendance was more often rated essential by the social worker than that of the general practitioner. There was no evidence in those cases where social workers rated the general practitioner's attendance as essential that this resulted in increased general practitioner participation. General practitioners were equally unlikely to participate in initial, first review and subsequent review case conferences. Most importantly, general practitioner participation/non-participation was not related to length of notice given. In phase two, 76 general practitioners from the sample of 83 were interviewed in order to elicit factors underlying their decision on participation in child protection case conferences. Personal and practice characteristics and attitudes towards the case conference and towards social workers were examined and subsequently analysed. No significant associations were discovered apart from a link between previous training in child protection and a less negative attitude towards communication with social workers and the belief that the general practitioner's participation in the case conference helps him/her in the subsequent management of the case. Personal contact between local social workers and the primary health care team was seen as likely to be helpful in the establishment of a climate of trust which would facilitate the flow of sensitive information in both directions. Health visitors were often regarded by general practitioners as fulfilling the role of delegate to the case conference without having any formal remit to carry out this task.     

Stress, social support, and psychological and physical wellbeing in secondary school teachers

In order to evaluate the relationship between stress and social support, on the one hand, and indices of psychological and physical health, on the other, questionnaires were administered to 120 secondary school teachers. Full data were retrieved from 88 teachers, a response rate of 73%. Bivariate correlational analysis revealed associations between life stress and job stress and a variety of General Health Questionnaire measures of psychological wellbeing. Job stress was also correlated with self-reported short-term sickness absences from work. Social support measures were not. in the main, predictive of psychological health outcome measures. In contrast, neither stress nor social support measures were related to self-reported physical health problems or long-term sickness absences. It would appear that self-reported stress is largely associated with psychological wellbeing, and is not substantially related to indices of physical wellbeing. The former relationship does not appear to be substantially mediated by social support, and may be reflective of a general plaintive set.     

Minimizing attrition in longitudinal studies of special populations: An integrated management approach

Whilst statistical techniques are available to estimate effects for missing subjects in longitudinal designs, minimizing subject attrition is a major goal in longitudinal research. This may be particularly difficult when attempting to follow individuals who have special characteristics or disabilities. The Colorado Treatment Outcome Study, a longitudinal study of individuals with serious and persistent mental illness (SPMI), developed an integrated management approach that resulted in average re-contact rates of 95% in each follow-up year. This integrated management approach emphasized the partnership of all key parties to the research, including the community, the respondents, the field interviewers, and management. Guided by a set of values that emphasized respect for the respondent, confidentiality and community relationships, procedures were developed that included an information system, office protocols, staff selection, supervision, staff training, and subject location and engagement techniques. While each element is explicated with attention to special populations, it is their coordination and integration that is critical for success.     

Efficient computation of location depth contours by methods of computational geometry

The concept of location depth was introduced as a way to extend the univariate notion of ranking to a bivariate configuration of data points. It has been used successfully for robust estimation, hypothesis testing, and graphical display. The depth contours form a collection of nested polygons, and the center of the deepest contour is called the Tukey median. The only available implemented algorithms for the depth contours and the Tukey median are slow, which limits their usefulness. In this paper we describe an optimal algorithm which computes all bivariate depth contours in O(n ²) time and space, using topological sweep of the dual arrangement of lines. Once these contours are known, the location depth of any point can be computed in O(log² n) time with no additional preprocessing or in O(log n) time after O(n ²) preprocessing. We provide fast implementations of these algorithms to allow their use in everyday statistical practice.     

The expression of mourning in an eight-year-old girl

This is a case of a just-turned eight-year-old girl whose mother was murdered on September 18, 1983. Since the child was already in treatment, the mourning process started immediately and continued until the end of June 1984. The case is distinctive because of the relative ease with which this child was engaged in the process and educated to it. Unconscious feelings readily emerged because they had been so recently repressed. The mourning was accomplished mainly through the process of interpretation of her play and behavior, although at times she would bring things up directly. The focus of therapy remained on the mourning during the entire nine months of treatment.     

Carry‐over in cross‐over trials in bioequivalence: theoretical concerns and empirical evidence

There is now general agreement that pre‐testing for carry‐over in the AB/BA design is harmful and that efficient analysis of this design must proceed on the assumption that carry‐over has not affected the results to any appreciable degree. A general consensus has not been achieved in the case of higher‐order designs. Since particular forms of carry‐over can be estimated on a within‐patient basis and unbiased within‐patient treatment estimators are possible, some statisticians favour pre‐testing and some favour automatic adjustment for carry‐over. We present theoretical arguments that show that, just as in the AB/BA case, the strategy of pre‐testing is biased as a whole and also that the loss in terms of efficiency in adjusting is not negligible. We also present data from two large series of bioequivalence studies to provide empirical evidence that in this context carry‐over is either absent or rare. We conclude that adjusting or testing for carry‐over in bioequivalence studies is at worst harmful and at best pointless, and that this may also apply to other kinds of study. Copyright © 2004 John Wiley & Sons, Ltd.