Performance targets and stability of placements for children long looked after away from home

There are concerns that the performance indicators for children's services may not be adequately interpreted and used to improve service delivery for individual children. Data from a longitudinal study of 249 looked after children demonstrate that one target—improving the stability of placements—is more likely to be met if agencies can identify which children move frequently and why. While age, behavioural difficulties and the absence of mental health support may have contributed to placement breakdowns, the majority of moves were planned transitions from one temporary placement to another, suggesting that the system may ignore the needs of those children who cannot swiftly return home. Copyright © 2001 John Wiley & Sons, Ltd.     

Coping with Time‐Varying Demand When Setting Staffing Requirements for a Service System

We review queueing‐theory methods for setting staffing requirements in service systems where customer demand varies in a predictable pattern over the day. Analyzing these systems is not straightforward, because standard queueing theory focuses on the long‐run steady‐state behavior of stationary models. We show how to adapt stationary queueing models for use in nonstationary environments so that time‐dependent performance is captured and staffing requirements can be set. Relatively little modification of straightforward stationary analysis applies in systems where service times are short and the targeted quality of service is high. When service times are moderate and the targeted quality of service is still high, time‐lag refinements can improve traditional stationary independent period‐by‐period and peak‐hour approximations. Time‐varying infinite‐server models help develop refinements, because closed‐form expressions exist for their time‐dependent behavior. More difficult cases with very long service times and other complicated features, such as end‐of‐day effects, can often be treated by a modified‐offered‐load approximation, which is based on an associated infinite‐server model. Numerical algorithms and deterministic fluid models are useful when the system is overloaded for an extensive period of time. Our discussion focuses on telephone call centers, but applications to police patrol, banking, and hospital emergency rooms are also mentioned.     

Faces Behind the Figures: Interviews with Children Excluded from Primary School

This article presents a viewpoint on school exclusion from 22 primary-age children excluded from 20 different schools in two English local education authorities, (a county council and an inner London borough) during the 1993–94 academic year. Some of the methodological and ethical issues about researching children are outlined and considered. The approach and methods used in the research are explained. Interviews with children showed exclusion to be a significant but negative event for them, yet they were optimistic about a return to school. Children showed an awareness of what was considered to be appropriate or inappropriate behaviour in their school. They frequently referred to incidents of physical aggression as the reason for their exclusion. It is concluded that this awareness of appropriate behaviour as well as their optimism must be recognised and harnessed when young children are reintegrated into school following a period of exclusion.     

Safety First: A Model of Care for Working Systemically With High Risk Young People and Their Families in an Acute CAMHS Service

The following article outlines the Safety First Model for working with high‐risk young people in crisis. This hierarchical model prioritises emotional and physical safety by using multi‐systemic and family‐based interventions. A typical case example is used to illustrate the model and the structures and strategies employed at each level. The intervention model empowers families, facilitates their connections with other providers, and minimises the need for hospital admissions. The model also promotes collaborative and systemic practice in a child and adolescent mental health service.     

THE MEANING OF RACE TO EMPLOYERS:

The unemployment problems of blacks in the United States have been the subject of considerable research in the social sciences since the 1980s. One way of studying the barriers to employment faced by blacks has been to interview employers, face to face, and directly ask them about their racial attitudes. These studies have concluded that a majority of employers believe that blacks, compared with other racial and ethnic groups, are uncooperative, unreliable, and lack sufficient skills for entry-level employment. The present study critically reexamines employer racial attitudes toward blacks and other groups through a case study of employer hiring in the electronics industry in Los Angeles. Using a different set of interview questions, employers reported (1) that blacks are reluctant to accept unskilled jobs due to a higher reservation wage, not because they lacked skills or a work ethic, (2) that employer racial attitudes varied by level of occupational skill, and (3) that affirmative action regulations modified the hiring process such that employers were less likely to rely on negative racial stereotypes in their hiring and more likely to rely on objective criteria when screening job seekers. I conclude by suggesting that employer racial attitudes are dynamic and, in large measure, shaped by institutional relationships within the workplace.     

Diversity in the School Problems of Economically Disadvantaged Adolescents: Dual Pathways of Reading and Externalizing Problems

This study of economically disadvantaged 13-year-olds examined the relations between serious reading difficulties and clinical levels of externalizing behaviors in school. The variable-centered results showed that family variables, adolescent verbal ability, and negative emotion patterns differed in uniquely predicting reading achievement and externalizing behaviors. The person-centered analyses established robust groups of adolescents showing problems in a single domain, both domains, or neither domain, and that family and adolescent variables distinguished the adolescent groups in predictable ways. Longitudinal results available for a subsample showed that high problem levels for the groups were stable across elementary school and associated with first-grade characteristics. The results provide evidence for relatively independent pathways of reading and externalizing difficulties for young disadvantaged adolescents.     

Survival estimation and the effects of dependency among animals

Survival models assume that fates of individuals are independent, yet the robustness of this assumption has been poorly quantified. We examine how empirically derived estimates of the variance of survival rates are affected by dependency in survival probability among individuals. We used Monte Carlo simulations to generate known amounts of dependency among pairs of individuals and analyzed these data with Kaplan-Meier and Cormack-Jolly-Seber models. Dependency significantly increased these empirical variances as compared to theoretically derived estimates of variance from the same populations. Using resighting data from 168 pairs of black brant ( Branta bernicla nigricans ), we used a resampling procedure and program RELEASE to estimate empirical and mean theoretical variances. We estimated that the relationship between paired individuals caused the empirical variance of the survival rate to be 155% larger than the empirical variance for unpaired individuals. Monte Carlo simulations and use of this resampling strategy can provide investigators with information on how robust their data are to this common assumption of independent survival probabilities.