Intended and Ideal Family Size in the United States, 1970–2002

Cross‐nationally, observed fertility is well below mean levels of reported ideal family size and also usually well below survey respondents' fertility desires and intentions. The United States is an exception. In this article we: (1) discuss the importance of fertility ideals and intentions for understanding observed fertility levels, (2) propose a model that can account for variable attitude‐behavior consistency, and (3) use this model as a framework to examine trends in American women's fertility ideals, intentions, and actual fertility. Our study uses data from the General Social Surveys and the Current Population Surveys. We ask whether preferences and intentions for moderate family sizes have eroded with time. The answer is remarkably clear: the dominant American ideals and intentions are for two or three children, and these preferences have persisted across the last three decades. The unusual aggregate correspondence between fertility intentions and behavior in the United States is explained by an apparent offsetting of factors that increase/decrease fertility relative to intentions.     

The Tumorigenicity of Mutagenic Contact-Sensitizing Chemicals

The electrophilic nature of some contact sensitizers, that is, chemicals that cause allergic contact dermatitis (ACD), is also characteristic of genotoxic tumorigens. Electrophiles can adduct protein, which is the basis for ACD, as well as DNA, which is the basis for mutagenicity and carcinogenicity. This suggests that some electrophilic contact sensitizers may be genotoxic tumorigens. To further investigate this matter, we evaluated 146 chemicals that had been bioassayed for tumorigenicity and mutagenicity in the National Toxicology Program, with an analysis of structure-activity relationships for contact sensitization. Using the data from this analysis and from other sources, the proportion of the contact sensitizers that were both mutagenic and tumorigenic was found to range from 20% to 28%. This finding suggests that there may be in the order of 90 genotoxic tumorigens for rodents among the approximately 384 chemicals that have been validated as contact sensitizers for humans.     

Children's attitudes to parents', teachers' and employers' perceptions of term‐time employment

This article is concerned with examining working children's perceptions of how adults in a range of different settings view their employment. In particular, the article explores how participation in the labour market influences adult‐child relationships within the home, at school and at work. Children interact with adults across a variety of different spheres. Dependence and independence permeate children's relationships with adults in different social settings. Entry to the labour market and access to earnings promotes responsibility among children and encourages self‐reliance. The purpose of the article is to assess the extent to which these traits affect children's interaction with adults within and across the social spaces of the home, school and place of employment. Copyright © 2003 John Wiley & Sons, Ltd.     

Best Practices to Manage Migration: The Philippines

The Cooperative Efforts to Manage Emigration (CEME) project examines ways in which countries of origin, transit, and destination can cooperate to better manage migration. The project focuses on source countries of migration that are in transition to market economies and democratic systems of governance, developments that promise to reduce unwanted migration, and uses study visits to seek best practices for organizing the three Rs ‐ recruitment, remittances, and returns ‐ to protect migrants and to reduce emigration pressures and for promoting ongoing cooperation on migration matters between countries of origin, transit and destination.     

A Behavior Analytic Analogue of Learning to Use Synonyms,Syntax, and Parts of Speech

Matching-to-sample and sequence training procedures were used to develop responding to stimulus classes that were considered analogous to 3 aspects of verbal behavior: identifying synonyms and parts of speech, and using syntax. Matching-to-sample procedures were used to train 12 paired associates from among 24 stimuli. These pairs were analogous to synonyms. Then, sequence characteristics were trained to 6 of the stimuli. The result was the formation of 3 classes of 4 stimuli, with the classes controlling a sequence response analogous to a simple ordering syntax: first, second, and third. Matching-to-sample procedures were then used to add 4 stimuli to each class. These stimuli, without explicit sequence training, also began to control the same sequence responding as the other members of their class. Thus, three 8-member functionally equivalent sequence classes were formed. These classes were considered to be analogous to parts of speech. Further testing revealed three 8-member equivalence classes and 512 different sequences of first, second, and third. The study indicated that behavior analytic procedures may be used to produce some generative aspects of verbal behavior related to simple syntax and semantics.     

The role of probability generating functions for estimation in incompletely observed random walks

Partial observation of a random walk results in independent convolutions of i.i.d. variables. It is known that under a scheme of sufficiently frequent observation, moments of the random walk can be consistently estimated. In these cases, probability generating functions (p.g.f.'s) can be used to circumvent the difficulties posed by likelihood estimation involving convolutions. Asymptotic properties of the p.g.f. estimates are given, and a comparison is made with the method-of-moments estimator, which is also shown to be asymptotically normal. In a parametric context, the p.g.f. estimator is shown to be asymptotically efficient. Monte Carlo experiments demonstrate that there are advantages to using the p.g.f.-based estimate in small samples as well.     

The application of the Olmstead decision on housing and eldercare

This article reviews the Supreme Court's interpretation of Title II of the Americans with Disabilities Act (ADA) and discusses its application for the frail older person. The parallels and differences between the societal ideas about, and the development of, community-based housing programs for younger populations of people with disabilities and for aging populations will be examined. This article explains how frail older people may be included in the ADA's definition of persons with disabilities. It then explains the Supreme Court's interpretation of discrimination in Olmstead v. L.C. ex rel Zimring (1999). Lastly, it examines the implications of the Olmstead decision for long-term care as it relates to housing for older people.     

Gender Composition of Children and the Third Birth in the United States

Pollard and Morgan (2002) argued that the parental mixed‐gender preference (i.e., parents' preference to have at least one son and one daughter) will weaken in the United States as aspects of gender become increasingly deinstitutionalized. They presented evidence that mixed‐gender preference weakened in the 1986–1995 period compared to earlier and coined this change as emerging gender indifference. On the other hand, credible claims and evidence suggest that after 1985, the “gender revolution” has stalled. Such arguments suggest that weakened mixed‐gender preference will persist. In this study, the authors replicated and extended Pollard and Morgan using 4 waves of data from the National Survey of Family Growth that allow examination of the 1966–2009 period. The results show that the effect of same‐gender children on intending/having another child declined in the 1986–1995 period; however, no evidence that this effect has continued to weaken was found. Thus, these data show evidence consistent with a “stalled revolution.”