Que faut‐il voir dans les écarts de rémunération entre les travailleurs immigrés des pays du Golfe: l'effet d'a priori patronaux ou la simple conséquence de coûts d'opportunité différents?

Les auteurs s'intéressent aux disparités salariales entre les différents groupes de migrants qualifiés qui travaillent en grand nombre pour le secteur privé dans les États du Conseil de coopération du Golfe. Ils se demandent notamment si la prime salariale des Occidentaux (par rapport aux travailleurs venus d'Asie ou d'autres États arabes) découle d'éventuels a priori des employeurs. L'analyse, qui repose sur des données de 2012–2014 et sur deux méthodes de décomposition classiques, infirme l'hypothèse: les caractéristiques observables relatives à la productivité expliquent entre un tiers et trois quarts des écarts; le coût d'opportunité de la migration, supérieur pour les Occidentaux, explique la portion restante.     

Effects of Africentric Socialization on Psychosocial Outcomes in Black Girls: The Critical Role of Gender

African American social work scholars recommend rigorous research and evaluation of Africentric interventions as one approach to building culturally appropriate, evidence-based treatments for the Black community. Following this approach, this pilot study evaluates the Imani Rites of Passage program, a 15-week Africentric curriculum with 10 Black adolescent females (mean age = 12.40), comparing their pre- and post-intervention data to that of a no-intervention group of 13 Black males (mean age = 12.08). The program evaluation is based on the degree of correspondence between theory and the measurement model spelled out by the cognitive-cultural view of African-American identity. The findings for Black females were consistent with the cognitive-cultural model in some ways but not in others, and they were more complex than the predictions. Future Africentric interventions guided by the cognitive-cultural model must consider gender differences in the outcomes. Implications for social work research and practice are discussed.     

Same-Gender Sexual Partnering: A Re-Analysis of Trend Data

Numerous studies have been carried out to estimate the prevalence of same-gender sexual behavior. Among studies conducted in recent years, few confirm the commonly quoted figure of 10%. Yet several studies in the early 2000s indicated that the prevalence of same-gender sex may be increasing, especially among women. This article reexamines the trends identified in previous research by using General Social Survey data from 1988 to 2010 and by focusing on multiple measures of same-gender sex over time. Results indicate that for both women and men the likelihood of having had a same-gender sexual partner since age 18 continued to increase through the 2000s, but that the likelihood of having had a same-gender sexual partner in both the past year and in the past five years leveled off for women and reversed for men. Results also indicate that the percentage of people reporting a pattern of predominantly same-gender sexual behavior has neither increased nor decreased over time. A similar result was found among persons who reported being in a same-gender sexual relationship. Overall, results paint a more complex picture than prior studies in characterizing trends in same-gender sexual behavior.     

Conservative linear programming with mixed multiple objectives

In an ordinary linear program a single objective vector is constructed and one attempts to choose a decision vector to optimize this objective. Often multiple criteria exist or exact estimates for the components of a single objective vector are not entirely clear. For these cases a conservative decision-maker may want to choose an alternative that maximizes the objective value under the worst foreseeable circumstances. Herein we develop a unified framework for applying the maximin criterion to problems with various degrees of uncertainty attached to the objective vector. Three cases are solved via linear programming: (1) Complete Information, (2) Partial Information, and (3) Total Ignorance. It is shown that the functional value of the maximin solution decreases in a convex manner with increasing uncertainty. In addition certain relationships between maximin and efficient solutions are provided. Finally, an extension to integer constrained decision variables is presented.     

Fossil fuel supplies simulation 1972–1979

Fossil fuels are an important source of energy for Ontario Hydro and purchases exceed $100 million per year. This paper describes a computer simulation of the inventory situation over an eight-year period, which is being used to assess the relationship between order flexibility and the target carry-over stocks at the beginning of each shipping season. A simple way of presenting the results for management evaluation is illustrated. Variations of the model are used to assess random influences, such as strikes, and to determine the economic balance between holding costs and stock-outs.     

Minority Report: Prevalence of Fear of Violent and Property Crimes Among a Diverse College Sample

Social Indicators Research - Fear is associated with several adverse health behaviors and outcomes. Fear of crime is associated with less exercise and outdoor activity, worse self-rated health...     

An objective rating form to evaluate grant proposals to the Hogg Foundation for Mental Health: a pilot study of implementation

The lack of support for mental health-related projects by private philanthropy, even among those that express an interest in mental health, is due in large part to the subjectivity of the grant review process. To address this problem, Whaley, Rodriguez, and Alexander developed the Grant Proposal Rating Form (GPRF) to make the grant review process more objective at the Hogg Foundation for Mental Health. The purpose of the current study is to establish the ecological validity of the GPRF by a pilot study of its implementation in the actual grant review process of the foundation. The overall results of this pilot study did not yield consistently favorable psychometric outcomes as the original study by Whaley et al. The implications of these results are discussed.     

Psychometric Properties of the Family Inventory of Resources and Stressors in Families of Children with Emotional/Behavior Disorders: Ethnic/Racial and Developmental Differences

The Family Inventory of Resources and Stressors (FIRST) has been shown to have adequate psychometric properties in the assessment of families of children with emotional and behavior disorders (EBD). However, the extent to which ethnic/racial and developmental differences moderate the psychometric properties of this instrument is unknown. The study sample consisted of 150 families with an EBD child consecutively admitted to the Astor Transitions Program. This study seeks (1) to conduct a psychometric analysis of the FIRST subscales among African American and Hispanic/Latino families with older students versus early childhood students with EBD, and (2) to determine whether profiles will show greater stress for families of older students due to longer exposure to their EBD. Alpha coefficients were computed with a cutoff of 0.70 (or higher) indicating acceptable internal consistency reliability. Criterion variables reflecting family environment, mental health, and level of service correlated with relevant FIRST subscales assessed validity. Ethnic/racial and developmental effects were found to moderate the psychometric properties of the FIRST. No statistically significant between-group mean differences on the FIRST were found for families of early childhood versus older EBD students. Despite evidence of response bias on the part of families and lack of standardization during test administration by caseworkers, the current findings still reveal adequate reliability and limited validity of FIRST subscales.     

Optimizing the wald-wolfowitz runs statistic using a linkage tolerance: guidelines based on computer simulation

When performing the Wald-Wolfowitz runs test, observations from two samples are combined and ordered, and the test statistic is the number of sequences of observations from the same sample. This test statistic is equivalent to the number of links between observations from different samples, if we consider each observation to be linked to the next higher and next lower observations. While it is known that the Wald-Wolfowitz runs test is not very powerful, what would be the effect on the power of the Wald-Wolfowitz runs test if all observations within a specified Euclidean distance or “tolerance” were linked instead? This question is motivated by the simulation results of Whaley and Quade (1985), who found that for normal data, the power of the multi-dimensional runs test using a linkage tolerance compared favorably to Hotelling's T² in some instances. The results of a similar simulation procedure show that the power of the Wald-Wolfowitz runs test does indeed improve when observations are linked using a tolerance. The results also suggest that a better large sample approximation to the distribution of the test statistic needs to be found.