The Prevalence and Course of Pathological Gambling in the Mood Disorders

The objective of the current investigation was to examine the prevalence of pathological gambling (PG) in a psychiatric sample with a history of mood disorder, and the concurrent and longitudinal association of PG and mood disorder symptoms according to retrospective report. A total of 275 (100 male, 175 female) psychiatric outpatients in Ontario, Canada, with a lifetime diagnosis of a depressive (n = 138) or bipolar disorder (n = 137), completed the Canadian Problem Gambling Index, South Oaks Gambling Screen and Longitudinal Interval Follow-up Evaluation. Correlational and cross-lagged panel analyses evaluated the relation between PG and mood disorder symptom course. The prevalence of PG was elevated within patients with a mood disorder; there was no difference across diagnosis. Concurrent PG and mood disorder symptoms were positively correlated; however, longitudinal analyses revealed no evidence for an association between PG and mood disorder symptoms when symptom stability was taken into account. Despite the elevated prevalence of PG within mood disorders, and the concurrent association between PG and mood disorder symptoms, no direct association was found between these types of pathology. Prospective designs and intervening variables are required to advance understanding of the etiological associations between these disorders.     

Attitudes toward Poverty during Undergraduate Education

Abstract

The commitment of social workers to serving economically disadvantaged clients has been questioned in an era of growing political conservatism. This empirical study examines perceptions of the causes of poverty of three groups of undergraduate social work students. Results confirm that students appear to develop beliefs about poverty that are consistent with desired professional values. Beginning, intermediate, and advanced BSW students rated structural explanations as the most salient and accorded the least importance to factors related to personal client deficiencies. However, a rise in fatalistic interpretations of poverty along with an increasingly external locus of control orientation characterized students who had completed their social welfare policy course. Strategies for enhancing curricula are suggested.     

Nonparametric spectrum estimation for spatial data

Smoothed nonparametric kernel spectral density estimates are considered for stationary data observed on a d-dimensional lattice. The implications for edge effect bias of the choice of kernel and bandwidth are considered. Under some circumstances the bias can be dominated by the edge effect. We show that this problem can be mitigated by tapering. Some extensions and related issues are discussed.     

Agricultural policies and migration in a U.S.-Mexico free trade area: A computable general equilibrium analysis

A United States-Mexico agreement to form a free trade area (FTA) is analyzed using an 11-sector, three-country, computable general equilibrium model that explicity models farm programs and labor migration. The model incorporates both rural-urban migration within Mexico and international migration between Mexico and the United States. In the model, sectoral import demands are specified with a flexible functional form, an empirical improvement over earlier specifications, which use a constant elasticity of substitution function. Using the model, we identify trade-offs among bilateral trade growth, labor migration, and agricultural program expenditures under alternative FTA scenarios. Trade liberalization in agriculture greatly increases rural- urban migration within Mexico and migration from Mexico to the United States. Migration is reduced if Mexico grows relative to the United States and also if Mexico retains farm support programs. However, the more support that is provided to the Mexican agricultural sector, the smaller is bilateral trade growth. The results indicate a policy trade-off between rapidly achieving gains from trade liberalization and providing a transition period long enough to assimilate displaced labor in Mexico without undue strain.     

What Do Happy People Do?

Little attention in the quality-of-life literature has been paid to data on the daily activity patterns of happy and less happy people. Using ratings-scale information from time-diary studies, this article examines the hypothesis that people who describe themselves as happier engage in certain activities more than those who describe themselves as less happy. Based on 34 years of data collected by the General Social Survey (GSS) on social activities and media usage, it is found that people who are happy report being more active in most social activities, in religion and in newspaper reading. On the other hand, happier people report less time watching television, a relation that holds after control for education, marital status and other predictors of happiness. The need to replicate these findings using panel data is highlighted.     

APPROXIMATIONS TO SOME TEST STATISTICS FOR PERMUTATION TESTS IN A COMPLETELY RANDOMIZED DESIGN1

Under a randomization model for a completely randomized design permutation tests are considered based on the usual F statistic and on a multi-response permutation procedure statistic. For the first statistic the first two moments are obtained so a comparision with the distribution under the normal theory model can be made. The second statistic is shown to converge in distribution to an infinite weighted sum of chi-squared variates, the weights being the limits of the eigenvalues of a matrix depending on the distance measure used and the order statistics of the observations.     

Probabilities of Failure in Mixed Acceptance Sampling Schemes

Mixed acceptance sampling schemes are commonly used for consumer protection. In a typical application, a sample is taken from a product lot and tested to check that the average value of the sample is not less than the labelled net content, and that there is no 'unreasonable' deficiency in any individual item. Exact and approximate expressions are obtained for the probabilities of failure or success under such schemes and under a variety of conditions.