Gene‐environment correlations in the cross‐generational transmission of parenting: Grandparenting moderates the effect of child 5‐HTTLPR genotype on mothers' parenting

Evidence suggests that parenting is associated cross‐generationally and that children's genes may elicit specific parenting styles (evocative gene‐environment correlation). This study examined whether the effect of children's genotype, specifically 5‐HTTLPR, on mothers' parenting behaviors was moderated by her own parenting experiences from her mother. Two independent samples of three‐year‐olds (N = 476 and 405) were genotyped for the serotonin transporter gene, and observational measures of parenting were collected. Mothers completed measures of the parenting they received as children. The child having a short allele on 5‐HTTLPR was associated with more maternal hostility (Samples 1 and 2) and with less maternal support (Sample 1), but only if the mother reported lower quality grandmothers' parenting (abuse and indifference in Sample 1 and lower levels of grandmother care in Sample 2). Results support the possibility of a moderated evocative gene‐environment correlation.     

Dealing with the biased effects issue when handling huge datasets: the case of INVALSI data

The increasing prevalence of huge datasets addresses the research to appropriate statistical methods for solving troubles caused by their complexity. On the one hand, several techniques are mentioned in the literature, especially for the time-consuming and variables reduction issues. On the other, less debate is devoted to the statistical inference issue. Indeed, a large number of involved statistical units may lead to wrongly consider as significant variables without any actual impact on the phenomenon under study. This paper suggests a suitable subsampling procedure for the reduction of the number of statistical units and provides a novel index for the assessment of the significance effects. The proposal is validated by comparing results obtained from the analysis on the original data to those obtained from the proposed subsampling approach. The illustrative application focuses on the educational dataset made available by the National Committee for the Evaluation of the Italian Education Systems (INVALSI). This dataset collects information about the student features and achievements in Maths within the lower secondary schools of the Lombardy region (Italy). Due to the hierarchical structure of the data, a multilevel model is implemented with the purpose of investigating the effects of both individual and school factors on student Maths score.     

Relationship characteristics of couples married thirty years or more: A four-sample replication

A secondary analysis of four samples from earlier studies was used to test two hypotheses concerning long-term marriages. First, it was hypothesized that couples from marriages of 30 years or more duration would be characterized by higher levels of relationship quality, with the overall pattern between duration of marriage and relationship quality being curvilinear; across four samples of husbands and wives, only weak support was found for this hypothesis. A second hypothesis, that elements of intrinsic communication including positive regard, empathy, and congruence would be less important for couples from older marriages, received no support. Thus, it appears that relatively intrinsic components of the marital relationship are just as important currently for older couples as they are for younger couples, in spite of popular opinion to the contrary.The preparation of this paper was supported in part by the Kansas Agricultural Experiment Station, Contribution No. 84-516-J. Janette M. Copeland and Margaret A. Bugaighis are doctoral students, and Walter R. Schumm is an associate professor in the Department of Family and Child Development, College of Home Economics, Kansas State University, Manhattan, Kansas 66506.     

Immigration and the Changing Population of New South Wales and Sydney with Implications for Education and Health Services

The problem of economic and social support for the dependant sectors of the Australian population in the future is addressed through consideration of recent national and regional population projections in relation to dependency theory. The level of immigration required to prevent the dependent sectors growing unduly at the expense of the productive is shown to be significant and this is complicated by high unemployment, and the issue of how many immigrants that can continue to be absorbed into the workforce. The contribution of suburban development trends, with their often wasteful provision of services at the local level in the longer term, as the result of regional demographic change, is seen to exacerbate the problems at the national level.     

Unemployment in Poland - causes and remedial measures

This article describes unemployment and labor market policy in Poland after 1989. The analysis is based on official statistics, legislation and Polish social science literature. The unemployment situation in Poland is continually changing. Conclusions drawn by social scientists in 1991 and 1992 no longer give an adequate account of labor market trends in 1995. Steeply rising unemployment is the most traumatic upheaval in post-Communist Polish society. At the end of 1989, the number of people looking for work in Poland was far less than the number of available jobs. But by the end of 1992 there were 62 job-seekers for every job opening, dropping to 56 in September 1994. The social problems associated with unemployment vary from region to region. Women and young people predominate among the unemployed. The Polish government set up a Work Fund in January 1990 to alleviate unemployment. The Work Fund is the first real measure taken to assist the unemployed, but new legislation is needed if it is to become more effective.     

BANK RESERVE REQUIREMENTS AS AN IMPEDIMENT TO SIGNALING

Effective legal reserve requirements may hamper the private capital market's ability to price bank deposits. In the model developed here, the market has less information about bank assets than the banks have, and a bank can therefore signal its superior information through its choice of excess reserves. Mandatory reserves can inhibit such signaling and therefore result in inefficient deposit pricing.     

Social Ecology of Premature Mortality in Three Australian Cities

Variations in mortality from ischaemic heart disease and cancer in the age group 50–64 for the period 1969–1973 inclusive were found to be statistically highly significant, with the highest incidences in certain inner local government areas (LGA) and some exurban LGAs. Correlation and regression analysis were undertaken between a small number of social indicator independent variables and the dependent mortality variables. These variables represented three constructs, social isolation-housing class, crowding-density and socioeconomic status which together accounted for more than 40% of the variance in Sydney and Adelaide, but not in Melbourne, although the relationship there was still highly significant. Schematic models of factors in higher or lower disease incidence in particular areas are presented in the concluding section.