The future of clinical practice: A study

This paper presents the results of a study conducted to determine how BSW and MSW social work students differentially assess the relative prestige and effectiveness of casework, psychotherapy, and private practice in relation to thirteen other social work methods, and to ascertain what methods they would ideally like to practice upon graduation from their respective programs. The results indicate that undergraduate and graduate students view the average prestige and effectiveness of the three clinical methods quite differently. Also, the results reveal a very low correlation between what methods the students would like to practice and how they assess their prestige and effectiveness.     

An Exact Analysis of the Multistage Model Explaining Dose-Response Concavity

The traditional multistage (MS) model of carcinogenesis implies several empirically testable properties for dose-response functions. These include convex (linear or upward-curving) cumulative hazards as a function of dose; symmetric effects on lifetime tumor probability of transition rates at different stages; cumulative hazard functions that increase without bound as stage-specific transition rates increase without bound; and identical tumor probabilities for individuals with identical parameters and exposures. However, for at least some chemicals, cumulative hazards are not convex functions of dose. This paper shows that none of these predicted properties is implied by the mechanistic assumptions of the MS model itself. Instead, they arise from the simplifying "rare-tumor" approximations made in the usual mathematical analysis of the model. An alternative exact probabilistic analysis of the MS model with only two stages is presented, both for the usual case where a carcinogen acts on both stages simultaneously, and also for idealized initiation-promotion experiments in which one stage at a time is affected. The exact two-stage model successfully fits bioassay data for chemicals (e.g., 1,3-butadiene) with concave cumulative hazard functions that are not well-described by the traditional MS model. Qualitative properties of the exact two-stage model are described and illustrated by least-squares fits to several real datasets. The major contribution is to show that properties of the traditional MS model family that appear to be inconsistent with empirical data for some chemicals can be explained easily if an exact, rather than an approximate model, is used. This suggests that it may be worth using the exact model in cases where tumor rates are not negligible (e.g., in which they exceed 10%). This includes the majority of bioassay experiments currently being performed.     

A meta-analysis of research on adolescent contraceptive use

Meta-analysis was used to summarize the results of 134 studies of adolescent contraceptive use in relation to two major explanatory models, the career model and the decision model. There was evidence in support of both models, although there has been less research conducted on variables related to the decision model. The major variables found to affect young women's contraceptive use were partner influence to use contraception, acceptance of one's sexuality, future orientation, positive attitudes toward contraception, an exclusive sexual relationship, and frequency of intercourse. The major variables affecting young men's contraceptive use were partner influence, frequency of intercourse, and positive attitudes toward contraception; however, there was relatively little research on young men compared to young women. A number of possible future directions for research are noted.We would like to thank Nancy Adler and Catherine Chilman for their comments on an earlier version of this article. Portions of this research were presented at the 1984 meeting of the American Psychological Association.Requests for reprints should be addressed to Bernard E. Whitley, Jr., Department of Psychological Science, Ball State University, Muncie, Indiana, 47306.     

Rasch measurement and differences between women and men in self-esteem

Most researchers who investigate sociological influences on emotional well-being or distress employ correlational methods as justification for the scales used as measures of distress (factor analysis) and to describe the effects of various factors on distress (regression). This paper suggests that log-linear and related models offer certain advantages over the linear model which have largely been ignored. An analysis of the cross-classification of items included in a widely used measure of self-esteem suggests that one of the items must be eliminated to approximately achieve measurement as defined by Rasch. The resultant latent variable shows no difference in self-esteem between women and men. An analysis of the additive index which includes all of the items, however, reveals that women have lower self-esteem than do men. This apparent difference results solely from a difference on the discrepant item: women are less likely than men to report that they often, rather than sometimes or rarely, can do things as well as most other people.     

Race,Political Empowerment,and Minority Perceptions of Judicial Fairness*

Objective. Recent studies of the impact of black elite electoral success on the system‐supporting attitudes of black citizens have yielded mixed, but generally unimpressive, empirical results. We extend this limited research by examining the effects of the presence of black judicial officials on public attitudes toward a state judicial system. Methods. We employ data from a telephone survey of citizens in Mississippi and develop multivariate models to test for the effects of black judges on citizens' evaluations of the fairness of judges, equity in sentences, and overall impartiality of the state judicial system. Results. We find no systematic evidence that the election of black judicial officials ameliorates the suspicions of the black public regarding the fairness of the state courts. Conclusions. Our findings are in line with other recent studies on the limited effects of black elite electoral success on the attitudes of the black public and generally support a “political reality” model of political trust rather than an “empowerment model.”     

Does the supplemental nutrition assistance program really increase obesity? The importance of accounting for misclassification errors

The prevalence of obesity among US citizens has grown rapidly over the last few decades, especially among low-income individuals. This has led to questions about the effectiveness of nutritional assistance programs such as the Supplemental Nutrition Assistance Program (SNAP). Previous results on the effect of SNAP participation on obesity are mixed. These findings are however based on the assumption that participation status can be accurately observed, despite significant misclassification errors reported in the literature. Using propensity score matching, we conclude that there seems to be a positive effect of SNAP participation on obesity rates for female participants and no such effect for males, a result that is consistent with several previous studies. However, an extensive sensitivity analysis reveals that the positive effect for females is sensitive to misclassification errors and to the conditional independence assumption. Thus analogous findings should also be used with caution unless examined under the prism of classification errors and of other assumptions used for the identification of causal parameters.     

Correlates of Alcohol Use Likelihood for Latino Immigrant Youth in an Emerging Context

Using a three-wave prospective longitudinal design spanning 3 years, we assessed alcohol use likelihood trajectories and their correlates among a community sample of Latino immigrant adolescents in the emerging immigrant context of Western Oregon. Results from growth mixture modeling revealed two distinct classes: lower risk youth who reported little likelihood of alcohol use but whose trajectory was increasing, and higher risk youth who reported higher likelihood of alcohol use and whose trajectory was stable. We found significant differences between the two classes such that lower risk youth reported greater levels of Latino cultural orientation and parental monitoring, whereas higher risk youth reported greater levels of family cultural stress and delinquency. Results are discussed in terms of prior research and theory.     

Predicting group consciousness among Asian Americans: Considering commonalities,shared interests,panethnic group identification,and linked fate

Identifying factors linked to the development of group consciousness is important toward bettering our understanding of group formation processes among marginalized ethnoracial groups. This study examines predictors of group consciousness among Asians and Asian Americans in the United States, focusing on numerous dimensions of this concept, including linked fate, panethnic group identification, and four specific sources of perceived group commonality and interests: (1) cultural, (2) economic, (3) political, and (4) racial. We use data from a national survey to examine socio-structural, political, discrimination, and immigration correlates associated with separate dimensions of Asian group consciousness. We found that perceiving interpersonal discrimination increased the importance of being Asian; heightened the odds of feeling linked fate with other Asian people; and enhanced the odds of identification as “Asian American.” Republicans and Independents were less likely to perceive different elements of Asian group consciousness compared to Democrats. Educational attainment, income, gender, employment status, ethnicity, and English-speaking comfortability had varying effects across certain measures of Asian group consciousness. For Asians and Asian Americans, interpersonal discrimination and certain socio-structural, political, and immigration factors may be especially meaningful toward the development of linked fate, shared group interests and commonalities, and panethnic identification, all of which are key toward activating group consciousness.