Output-sensitive algorithms for Tukey depth and related problems

The Tukey depth (Proceedings of the International Congress of Mathematicians, vol. 2, pp. 523–531, 1975) of a point p with respect to a finite set S of points is the minimum number of elements of S contained in any closed halfspace that contains p. Algorithms for computing the Tukey depth of a point in various dimensions are considered. The running times of these algorithms depend on the value of the output, making them suited to situations, such as outlier removal, where the value of the output is typically small. This research was partly funded by the NSERC Canada.     

Histories of poverty and self-rated health trajectories

This paper investigates the dynamic relationship between poverty histories and self-rated health trajectories. We are interested in patterns of change in individuals' health over time and the ways in which such patterns are structured by continuity and change in poverty experiences. Data, collected for adults aged 25 and older in 1984 (N = 7,258), are from the 1968-1996 annual waves of Panel Study of Income Dynamics (PSID). Individual growth curves allow us to investigate health trajectories as continuous processes, as well as individual and group heterogeneity in these trajectories. We find that, on average, health deteriorates slowly over time, but there is significant variation in health in 1984 and the rate at which health declines. Histories of poverty partly accounted for the sources of individual differences in self-rated health in 1984, but they were not related to health change over time. Although increasing incomes were better for self-rated health than falling incomes, current economic circumstances did not erase the health effects of earlier poverty experiences.     

What is Adult Attachment?

This paper explores the concept of adult attachment. Although attachment theory is now getting a great deal of attention, there is not yet a clear picture of what it means to be attached in adulthood or what the clinical applications of the approach might be. Using Bowlby’s distinctive ethological-evolutionary framework and updating it with findings from neurobiology and attachment research, it is proposed there is an attachment behavioral system that operates throughout the lives of adults and that this changes the way we understand our clients’ distress and carry out psychotherapy.

Sleepiness,choice consistency,and risk preferences

We investigate the consistency and stability of individual risk preferences by manipulating cognitive resources. Participants are randomly assigned to an experiment session at a preferred time of day relative to their diurnal preference (circadian matched) or at a non-preferred time (circadian mismatched) and choose allocations between two risky assets [using the Choi et al. (Am Econ Rev 27(5):1921–1938, 2007), design]. We find that choices of circadian matched and mismatched subject are statistically similar in terms of satisfying basic requirements for preference consistency. However, mismatched subjects tend to choose riskier asset bundles.     

Who lives and dies on death row? Race, ethnicity, and post-sentence outcomes in Texas

A substantial body of research has explored the extent to which the race of offenders and victims influences who receives a death sentence for capital crimes. Little is known about how race and ethnicity might pattern death-row outcomes. Drawing upon evidence from male offenders sentenced to death in Texas during the years 1974 through 2009, we extend recent research by examining whether the race and ethnicity of offenders and victims and a number of offender, victim, and crime attributes influence the likelihood of executions and sentence relief (whereby prisoners leave death row). Cox regression analyses are used in conjunction with a multiple-imputation method for handling a modest amount of missing data. The results show that cases involving minorities—with black or Latino offenders or victims—have lower hazards of execution than cases in which both offenders and victims are white. Victim and offender race and ethnicity have little to no independent effect upon the hazard of sentence relief.     

Conceptualising Child and Family Support: The Contribution of Honneth's Critical Theory of Recognition

The role of social support in child welfare policy and practice continues to engender widespread debate. Yet the moral and philosophical underpinnings of this topical area have received less attention in the literature. This is of concern, not least because academic debates on the ‘politics of identity’ have a significant contribution to make to our understanding of self‐development and social justice. In this article the authors show how Axel Honneth's account of the ‘struggle for recognition’ can be adapted to invigorate theories of social support. The result is a conceptual framework for reflective practice that can illuminate, and interrogate, the moral and operational dimensions of preventative work with children and families.     

Morality and Sexual Issues in Older Adolescent Females

A follow-up study to Carol Gilligan’s work in female adolescent moral development was conducted in the presentation of a hypothetical moral sexual situation to eight older, culturally diverse adolescent females in their first year of college. The naming of a “Good Friend’s” conflict and the personal moral reasoning of the interviewees were audiotaped, transcribed and analyzed using a sequence of four readings as subscribed by Gilligan and her associates. Examples of Justice reasoning, a Care reasoning, and an Integrated moral reasoning are presented along with suggestions for educators and therapists.