A permutation approach for testing heterogeneity in two-sample categorical variables

In many sciences researchers often meet the problem of establishing if the distribution of a categorical variable is more concentrated, or less heterogeneous, in population P ₁ than in population P ₂. An approximate nonparametric solution to this problem is discussed within the permutation context. Such a solution has similarities to that of testing for stochastic dominance, that is, of testing under order restrictions, for ordered categorical variables. Main properties of given solution and a Monte Carlo simulation in order to evaluate its degree of approximation and its power behaviour are examined. Two application examples are also discussed.     

University Students’ Attitudes Toward Same-Sex Parenting and Gay and Lesbian Rights in Portugal

The purpose of this study was to explore university students’ attitudes toward same-sex parenting and toward gay and lesbian rights. A total of 292 participants, aged between 18 and 27 (M = 21) responded to a questionnaire measuring attitudes toward parenting by gay men and lesbians, gay and lesbian rights, and beliefs about the etiology of homosexuality. Results revealed that the majority of students were against gay and lesbian parenting, gay and lesbian equal rights, and believed that homosexuality has a social/environmental basis. It was found that sexual prejudice is highly prevalent in Portuguese university students, and implications of these findings are discussed.     

Latinos and School Vouchers: Testing the “Minority Support” Hypothesis*

Objectives. Voucher proponents, as well as some researchers, argue that minorities and individuals of relatively low socioeconomic status (SES) particularly favor school vouchers. Little work has specifically explored Latino attitudes, with the focus typically on African‐American opinions. This article will therefore examine whether Latinos hold unique attitudes toward vouchers. Methods. Ordinal probit regression analysis of a recent national survey of Latinos, African Americans, and Anglos (non‐Latino whites). Results. In the aggregate, Latinos and African Americans are more likely than Anglos to support vouchers. The Latino population variable is statistically insignificant, however, while the African‐American measure is significant and positive. When the aggregate Latino variable is disaggregated into four major Latino national‐origin groups, Puerto Ricans are shown to hold uniquely favorable opinions about vouchers. In addition, there are no opinion differences by income and education. Conclusions. When Catholicism is taken into account, the voucher opinions of Latinos and Anglos are generally indistinct. This suggests that aggregate Latino support for vouchers may drop if Catholic affiliation further declines.     

Predictors of stress and depressive mood in Portuguese middle-aged women

ABSTRACT

This cross-sectional study investigates the predictors of psychological symptoms—stress and depressive mood—in a sample of middle-aged women. A community sample of 1,003 women filled in the questionnaires and instruments, which included the Depression, Anxiety and Stress Scales and the Life Events Survey; sociodemographic, health, and menopause-related and lifestyle information was also collected. Structural equation modeling was used to build the model that had stress and depressive mood as dependent variables. Health status (both physical and psychological), recent life events, income and menopausal phase were significantly associated with the frequency of stress and depressive symptoms. Additionally, educational level and parity were also significant predictors of depressive mood. This study emphasizes that psychological symptoms occurrence in midlife depends not only on personal variables (such as health and menopausal status) but also on contextual ones (including recent stressful events) that can be a strong influence on how middle-aged women feel.     

Productivity of highly skilled immigrants: economists in the postwar period

Prior work finds declining immigrant quality in the postwar period that is linked to source-country and skill-composition changes associated with the 1965 Immigration Act. This paper uses a unique panel of foreign- and native-born American Economic Association members to show that the highly skilled experienced a similar shift away from European migrants toward those from Asia. However, the findings do not indicate that this change in source-country composition has been accompanied by a decline in quality; rather, the most recent cohorts of foreign-born economists appear to be more productive than their native counterparts.     

Does Anti‐Hispanic Bias Motivate Opposition to Non‐English Languages?*

Contemporary political debates about language policy in the United States focus on three primary policy issues: bilingual education in public schools, English‐only legislation, and the access of non‐English speaking citizens to political rights. Using the “Multi‐Ethnic United States” module from the 2000 General Social Survey (GSS), this article tests multiple attitudinal, behavioral, demographic, and contextual hypotheses for how Anglos and African Americans view bilingual policy issues. We examine the role of linguistic contact, self‐interest, group threat, and discriminatory views of Latinos, finding that the latter—as measured by the “Three Ds” (Derogation, Disrespect, and Distance)—are the strongest predictors of attitudes toward bilingualism. Distance (social distance from Latinos) is consistently significant, disrespect (doubts about Latino contributions to the United States.) is mostly significant, and derogation (Latino stereotypes) is occasionally significant. Also, political ideology and knowledge of a non‐English language play important roles in the formation of favorable bilingualism opinions. However, the self‐interest and group threat variables were largely insignificant. Taken together, these findings indicate the importance of understanding how policy views may be structured by opinions about out‐group individuals and cultures. Language can serve as a proxy for immigrants themselves, as negative attitudes toward Latinos are associated with negative attitudes toward bilingualism.     

Community-Run Fisheries: Avoiding the “Tragedy of the Commons”

This paper discusses how fishing communities around the world avoid destructive overfishing through local and largely informal self-management. The paper offers many examples that undermine the widespread assumption that the tragedy of the commons is inevitable without government regulation.