A MOMENT IDENTITY

A moment identity based on the concept of weighted distributions is presented. The identity has potential applications to problems involving the manipulation of expectations of functions of random variables. Several examples, mainly concerning the evaluation of the risk of shrinkage estimators of several parameters, are given.     

Time-use auditing: An approach to validating social indicators

Following McCal,, ‘quality of life’ is defined as objective social conditions necessary to the general happiness, where ‘happiness’ is understood in the broad sense, as including all forms of intrinsically valuable experience, not just ‘feeling happy’. The argument is then made that in order for this definition to be fully implemented happiness in the broad sense must also be assessed. The latter half of the paper is devoted to describing a set of procedures, collectively called ‘time-use auditing’, for determining the extent to which an individual person is happy, in the broad sense, in a stated interval of time. Intrinsically valuable experience is analyzed into two dimensions: duration and level. The first is determined by time-budgeting and the second (in a general way) by Maslow's hierarchy of needs. Specifically, Maslow's hierarchy is spelled out in concrete terms by means of “time-use rating structures’, each one specific to a particular time-use category; the authors have written rating structures for adolescents of either sex, ages 12 to 17 inclusive. By way of illustration, an audit of three weeks in the life of a 16-year-old girl is presented. The paper concludes with a discussion of what remains to be done, with special stress on writing time-use rating structures for other age groups and modifying structures already in existence to reflect the values of particular social groups.     

Regularised Manova for High‐Dimensional Data

The traditional and readily available multivariate analysis of variance (MANOVA) tests such as Wilks' Lambda and the Pillai–Bartlett trace start to suffer from low power as the number of variables approaches the sample size. Moreover, when the number of variables exceeds the number of available observations, these statistics are not available for use. Ridge regularisation of the covariance matrix has been proposed to allow the use of MANOVA in high‐dimensional situations and to increase its power when the sample size approaches the number of variables. In this paper two forms of ridge regression are compared to each other and to a novel approach based on lasso regularisation, as well as to more traditional approaches based on principal components and the Moore‐Penrose generalised inverse. The performance of the different methods is explored via an extensive simulation study. All the regularised methods perform well; the best method varies across the different scenarios, with margins of victory being relatively modest. We examine a data set of soil compaction profiles at various positions relative to a ridgetop, and illustrate how our results can be used to inform the selection of a regularisation method.     

Green,Yellow, Red: Implementing a New Workflow for Collection Management at College of Charleston Libraries

Abstract

This article summarizes the North Carolina Serials Conference presentation “Green, Yellow, Red: Implementing a New Workflow for Collection Management at College of Charleston Libraries,” a case study evaluating a new workflow created by the Collection and Content Services Department at the College of Charleston Libraries to streamline the renewals process after significant departmental and staff changes. The librarians involved in creating the workflow found that they could not only use it to organize their renewals processes, but also to open communication with faculty regarding underutilized resources.     

Conventional and expanded adverse childhood experiences (ACEs) and maternal functioning among low-income Black mothers

A paucity of research has examined the individual and cumulative effects of conventional and expanded adverse childhood experiences (ACEs) on maternal functioning, especially among low-income Black mothers. Using self-report data from a subsample of Black mothers (N = 157) who participated in a larger study to evaluate the effectiveness of an urban public prekindergarten program in the mid-Atlantic region of the United States, we examined the prevalence of ACEs and the individual and cumulative effects of conventional (i.e., family trauma and dysfunction) and expanded (i.e., community stressors) ACEs on depression and health among low-income Black mothers. Findings indicated that Black mothers had more exposure to expanded than conventional ACEs. Hierarchical regression analyses revealed that experience of physical neglect was significantly associated with depression and physical abuse with compromised health, and perceived experience of racism was a predictor of depression and compromised health. More conventional and expanded ACEs were associated with clinical levels of depression and compromised health. Findings highlight the need for more research related to the impact of ACEs, especially expanded ACEs, on mental and behavioural health outcomes. Additionally, our findings indicate the need for more trauma-informed care to reduce and address the impact of individual and community-level adversities on low-income Black mothers.