The Role of Gesture in Children's Comprehension of Spoken Language:Now They Need It, Now They Don't

Two experiments investigated gesture as a form of external support for spoken language comprehension. In both experiments, children selected blocks according to a set of videotaped instructions. Across trials, the instructions were given using no gesture, gestures that reinforced speech, and gestures that conflicted with speech. Experiment 1 used spoken messages that were complex for preschool children but not for kindergarten children. Reinforcing gestures facilitated speech comprehension for preschool children but not for kindergarten children, and conflicting gestures hindered comprehension for kindergarten children but not for preschool children. Experiment 2 tested preschool children with simpler spoken messages. Unlike Experiment 1, preschool children's comprehension was not facilitated by reinforcing gestures. However, children's comprehension also was not hindered by conflicting gestures. Thus, the effects of gesture on speech comprehension depend both on the relation of gesture to speech, and on the complexity of the spoken message.     

Do couples share income? Variation in the organisation of income in dual‐earner households

This paper examines the organisation of income of cohabiting and married dual‐income couples. This topic has gained significance as women increase their participation in the labour force, and increasingly bring additional money into the household. Given the increase in cohabitation, researchers have proposed that financial arrangements may differ according to relationship type. We model the effect of relationship type and previous relationship experience using data from a nationally‐representative survey from Australia. The effect of other factors related to the individual and household, such as length of relationship, educational background, home ownership and presence of children, is also explored. We find income organisation varies by whether the person is legally married or cohabiting, which we attribute to the institution of marriage.     

More than self-interest: Why different classes have different attitudes to income inequality

The connection between social class and political preferences is among the most well established in the social sciences. This association is typically taken as prima facie evidence of economic self-interest: Classes hold different attitudes, values, and party preferences because they have different economic interests. However, this assumption has rarely been tested empirically. In this article, we use survey data from 18 West European countries to examine why classes differ on a central aspect of political preferences, namely their views on the desirability of income inequality. We find that only a moderate proportion of differences between employee classes in support for redistribution can be accounted for by contemporary differences in resources and risks; differences in economic interests to some degree account for the anti-redistributive preferences of the professional middle classes compared with the working class. However, the preferences of the self-employed have a different explanation; autonomy is a better explanation of the right-wing preferences of the self-employed compared with the working class.     

A Bayesian approach to Weibull survival models—Application to a cancer clinical trial

In this paper we outline a class of fully parametric proportional hazards models, in which the baseline hazard is assumed to be a power transform of the time scale, corresponding to assuming that survival times follow a Weibull distribution. Such a class of models allows for the possibility of time varying hazard rates, but assumes a constant hazard ratio. We outline how Bayesian inference proceeds for such a class of models using asymptotic approximations which require only the ability to maximize the joint log posterior density. We apply these models to a clinical trial to assess the efficacy of neutron therapy compared to conventional treatment for patients with tumors of the pelvic region. In this trial there was prior information about the log hazard ratio both in terms of elicited clinical beliefs and the results of previous studies. Finally, we consider a number of extensions to this class of models, in particular the use of alternative baseline functions, and the extension to multi-state data.     

Direct and indirect effects of unionization on the wage levels of nurses: A case study of New Jersey hospitals

This study examines the determination of wage rates for nurses in hospital employment. Of particular concern is the effect of the recent increase in unionization by nurses on their wages, both directly and indirectly via threats from competing hospitals’ unionization. To improve on earlier work, the data are disaggregated and gathered from only one state to standardize for the legal, licensing, and reimbursement systems. We also look at the difference between highly skilled professional nurses, RN’s, and more general and less professional nurses, LPN’s. The results show that working conditions and competition in the market influence the wage rate as one would expect. The unionization of nurses, however, affects the wage levels differently for the two groups. We would like to thank Professors Robert Higgs and Alan Childs of Lafayette College, Professor David Fairris of Williams College, Professor James C. Luzier of Muhlenberg College, and an anonymous referee for their helpful comments and suggestions.     

The changing determinants of U.S. Unionism: An analysis using worker-level data

In contrast to much of the literature examining the decline of trade unions in the United States, I examine the decline from the perspective of the individual employee. Worker-level data combined with industry-level data for the years 1972 and 1987 are used to investigate the decline. The central findings are that the changing sex and race composition of the labor force and increases in management resistance have had little influence, while gains in educational levels, changing occupations, and reductions in the economies of scale of union organizing have contributed greatly to the decline.     

Garfinkel before ethnomethodology

A short story titled “‘Color Trouble’” by Harold Garfinkel was published inOpportunity in 1940,The Best Short Stories 1941, andPrimer for White Folks in 1945. Garfinkel wrote this short story before World War II while a research fellow at the University of North Carolina, Chapel Hill under Howard W. Odum, the founder ofSocial Forces “‘Color Trouble’” narrates poignantly the racial victimization of a young black woman traveling on a public bus through the State of Virginia. The short story provides sociologists with a different medium through which to examine the seminal interests of ethnomethodology’s founder. In a literary form, the short story depicts such ethnomethodological concepts as the breaching experiment, the “et cetera clause,” “ad hocing,” and the status degradation ceremony. Garfinkel’s “‘Color Trouble’” also suggests the way in which ethnomethodology overlaps with, as well as diverges from, Erving Goffman’s dramaturgical perspective. He received his doctoral degree from the graduate program in sociology at York University, Toronto, Ontario. His article “Autonomy and Responsibility in Social Theory” will appear inCurrent Perspectives in Social Theory, Volume 10.     

Aspects of maximum likelihood estimation of asymmetric growth curves

As an extension to the work of Oliver, the variance-covariance matrices for the powered logistic and Bass equations were obtained and used to show that the addition of a fourth parameter resulted in the estimates for the remaining three parameters corresponding to those of the simple logistic becoming more unreliable. The degree of confidence that could be placed on the estimated parameters of the powered logistic decreased with the degree of asymmetry. However, the Bass equation proved much more resilient to this problem. A Monte Carlo study shows that, in small samples and for data sets that resemble new technologies in the early stages of di usion, the maximum likelihood estimates do not have the desirable properties of estimates based on large samples.