Optimal Cost Sampling for Decision Making with Multiple Regression Models

This paper develops an explicit relationship between sample size, sampling error, and related costs for the application of multiple regression models in observational studies. Graphs and formulas for determining optimal sample sizes and related factors are provided to facilitate the application of the derived models. These graphs reveal that, in most cases, the imprecision of estimates and minimum total cost are relatively insensitive to increases in sample size beyond n=20. Because of the intrinsic variation of the regression model, even if larger samples are optimal, the relative change in the total cost function is small when the cost of imprecision is a quadratic function. A model-utility approach, however, may impose a lower bound on sample size that requires the sample size be larger than indicated by the estimation or cost-minimization approaches. Graphs are provided to illustrate lower-bound conditions on sample size. Optimal sample size in view of all considerations is obtained by the maximin criterion, the maximum of the minimum sample size for all approaches.     

Acceptability of an Aboriginal Wellbeing Intervention for Supporters of People Using Methamphetamines

Families and workers often suffer significant stress while supporting people who are experiencing problems related to methamphetamine use yet there is little evidence on how best to help. Small pilot studies can provide valuable information about potential ways to intervene. This paper presents a pilot study of an Aboriginal family wellbeing intervention with workers in an Aboriginal health service. The pilot indicated that participation in the intervention improved the psychosocial empowerment and wellbeing of workers, that these workers perceived the program as relevant to families, and that this was an intervention they felt they could deliver to clients themselves.

IMPLICATIONS

• An Aboriginal family wellbeing intervention was piloted and found to improve the empowerment and wellbeing of workers. Participants regarded it as highly relevant for families supporting people using methamphetamines and other drugs.

• This research has added to our knowledge about how to assist those supporting Aboriginal people using methamphetamines and other drugs.

     

REGULATED AND UNREGULATED SUBSTITUTES: AVERSION EFFECTS OF AN ETHANOL MANDATE

One approach for handling more aggressive goals under an ethanol mandate is to use a “dual blend” mandate in which both the preferred new ethanol blend and the old (possibly ethanol‐free) blend of gasoline coexist. Highlighting the case of New South Wales, Australia, we show the dual nature of such a mandate can potentially lead to significant costs when consumers are averse. We show consumers en masse rejected the new blend and paid 43 cents per gallon more to avoid it. Not even the second of the mandate's four targets could be reached, and the consumer cost was substantial. (JEL L51, Q41, Q42, Q51)     

Constructing a city,building a life: Brazilian construction workers’ continuous mobility as a permanent life strategy

This article provides an ethnographic analysis of domestic labor mobility among Brazilian construction workers in the context of the 2016 Summer Olympics in Rio de Janeiro. We start from the premise that mobile laborers are crucial for the physical development and expansion of cities. However, the importance of domestic migrants in this process is insufficiently addressed in mobility studies. Building on existing research on domestic population movements in Brazil, we argue that the current generation of mobile construction workers draws on the intangible and material infrastructure generated by previous generations of migrants to enable novel kinds of (permanent) labor mobilities.     

Investigating the Readiness of Hospital Social Workers to Respond to Domestic and Family Violence

ABSTRACT

Domestic and family violence (DFV) is recognised as a health care priority. Women experiencing DFV use health services at a higher rate than the general population. Hospital social workers are an important component of a public hospital response to domestic and family violence but how prepared are they for this role? This research study explored the readiness of social workers in a Melbourne metropolitan hospital setting to respond to DFV. Results indicated that although the social workers had a knowledge base highly relevant for responding to DFV, many lacked specific knowledge of risk assessment, safety planning, legislative responsibilities, and referral pathways for support, including legal support. As a result, it was likely that they were not adequately responding, either by not recognising when they needed to, or with knowledge and confidence when they did. They also identified a range of organisational enablers, including policy, time, and safe conversation spaces.

IMPLICATIONS

• Hospital social workers have a central role to play in responding to domestic and family violence.

• Hospital social workers need to be better prepared for domestic and family violence responses.

• Social workers require ongoing training and organisational support including practice protocols and guidelines, and the provision of time and private, safe spaces for sensitive conversations to occur.

• Universities should ensure that the role of hospital social workers is considered within curriculum addressing the area of domestic and family violence (DFV).

     

Building School,Family, and Community Partnerships: Developing a Theoretical Framework

School, family, and community partnerships are among the suite of strategies advocated for improved school outcomes in which social workers can play a valuable role. Such partnerships are complex to implement in practice and there is little systematic research to guide the practitioner. This study evaluated an early intervention partnership program involving school, family, community, and philanthropic partners implemented in two primary schools in rural Victoria, Australia. The findings highlighted challenges in the process of evaluation and program implementation and in the opportunities this provided to identify key enabling factors. These involved having: a shared vision and aims; democratic governance; a supportive policy and organisational environment including external funding; workers with skills and clear roles; activities for project momentum; and ongoing review and evaluation. These factors can be used by social workers and others working with schools as a valuable conceptual framework to facilitate school, family, and community partnership processes.     

Language educators’ regard for variation in late modernity: Perceptions of linguistic variation in minority contexts

This article investigates language educators’ regard for linguistic variation in a minority language context. It argues that teachers function as language norm authorities who may influence the linguistic practices and ideologies of students, and that this role takes on added significance in minority language contexts where access to the target language may be limited. Data are presented from a study on the linguistic ideologies of Irish language educators – ‘new speakers’ who acquired the language mainly thorough the education system. Participants’ ideologies on variation in modern spoken Irish were explored using semi‐structured interviews incorporating a speaker evaluation design. Although participants valorise traditional dialectal varieties of Irish, in line with established hierarchies, ideological frameworks are contested so that new ways of using Irish are beginning to gain overt acceptance. The results reveal the manner in which hierarchies of language variation in the Irish language are in flux in our contemporary late‐modern period.     

Promoting Twenty-first-century Student Competencies: A Wellbeing Approach

In Australia and internationally, universities are preparing students for the twenty-first century through building the competencies fundamental for both social sustainability and wellbeing. However, there is little evidence on how these competencies can be fostered in curricula. This article presents the findings of a mixed-methods pilot of an Aboriginal wellbeing intervention that seeks to build such attributes when integrated into an undergraduate social work curriculum. A questionnaire incorporating the validated Growth and Empowerment Measure, the Australian Unity Personal Wellbeing Index, and open-ended qualitative questions was administrated to 64 first-year social work students before and after the intervention. Significant changes on both measures suggest that the intervention is highly relevant for student wellbeing, particularly for those who rated themselves as below the median at baseline. The qualitative findings highlight the relevance of the program for promoting social competencies that enable people to problem-solve and adapt in a complex world.     

Impact of the Equal Employment Opportunity and Affirmative Action Programs on the Employment of Women in the US

Abstract. This study examines the impact that Equal Employment Opportunity and affirmative action programs that were implemented in 1965 have had on the employment of women relative to that of men in the United States. Using time series data covering the period 1947-1988. the results indicate that women in the 20-54 age group benefitted in terms of greater stability of employment (i.e. less sensitivity to short-run variations in employment) over the period 1965-1980 while they lost some of these gains over the period 1981-1988 (corresponding to the tenure of the Reagan Administration). Men in the same age group, on the other hand, experienced the opposite effect. That is. men in the 20-54 age group became more sensitive to short-run variations in employment over the period 1965-1980 and less sensitive over the period 1981-1988. The evidence also indicates that the EEO and affirmative action programs had the effect of increasing the share of projected employment of women in the 20-24 age group and in the 55-64 age. group while decreasing the share of projected employment of men in the comparable age groups.     

Effects of Defending: The Longitudinal Relations Among Peer‐perceived Defending of Victimized Peers,Victimization, and Liking

Previous research has shown victims of peer aggression to be positively impacted by being defended by peers, but how enacted defending impacts defenders themselves is not thoroughly understood. In this study, the longitudinal associations between peer‐perceived liking, enacted defending, and defender's own victimization were investigated among 336 adolescents (M age = 13.21 years). Peer perceived liking was expected to predict defending. It was also hypothesized that a reputation for defending victimized peers would be related to being perceived as less victimized and more liked over time. Results showed that peer perceived liking was not predictive of defending. Enacted defending was associated with a decrease in victimization over time, but also a decrease in peer‐perceived liking. Defenders may benefit from enacted defending by decreasing their own victimization, but this benefit is nuanced.