Heart ed 101

Cardiovascular disease is the leading cause of death for men and women in the United States. Risk factors and health behaviors combine over time to contribute to the disease process. College communities provide a unique environment for health promotion, risk reduction, and primary intervention. Heart health should be an integral part of college health.     

How does POSSLQ measure up? Historical estimates of cohabitation

We use March Current Population Survey (CPS) data from 1977 to 1997 to produce a new historical series of indirect cohabitation prevalence estimates. We compare our new estimates with those produced by the traditional method and evaluate the new estimates. We then compare the indirect estimates with the new direct estimates to investigate whether biases exist in the indirect estimates. Our findings indicate that the traditional indirect method of estimating cohabitation prevalence underestimates cohabitors in different subpopulations, especially among those with children. We also find that the new indirect measure produces relatively unbiased estimates of cohabitors' characteristics.     

Self-care: Why do parents leave their children unsupervised?

We used a preferences-and-constraints model to develop four hypotheses to explain why parents may choose self-care (an unsupervised arrangement) as the primary child care arrangement for their children over supervised alternatives and tested them in a multivariate framework using 1995 data from the Survey of Income and Program Participation. We found that the choice of self-care over supervised care alternatives is linked to the availability of parents' time to care for children, the child's level of responsibility and maturity, and the neighborhood context. However, we found no evidence that parents' ability to pay for child care is related to the choice of self-care. The results also suggest that parents use different decision-making processes, depending on their children's ages.     

Social-Cognitive Factors in Childhood Social Anxiety: A Preliminary Investigation

The present study addresses the social cognition of socially anxious children, with particular emphasis on their ability to understand others' mental states in interpersonal situations. The heterogeneous sample used in this preliminary investigation consisted of 63 primary school children in England and the USA. The English children were from a mainstream classroom of 8- to 9-year-olds, while the children from the USA ranged in age from 6 to 11 years and had been selected by school district officials for a variety of social interaction difficulties. All children completed measures of social anxiety, shy negative affect, and various social-cognitive abilities, and teacher ratings of social skills were additionally available for the USA subgroup. Results showed that feelings of social anxiety are not associated with any basic deficit in the understanding of recursive mental states which concern facts about the physical world. However, there was evidence that socially anxious children—particularly those with high levels of shy negative affect—do experience specific social-cognitive difficulties in understanding the links between emotions, intentions, and beliefs in social situations. Providing further support for this link, socially anxious children were rated by their teachers as poorer than non-anxious children only on social skills that require insight into others' mental states. Directions for further examination of this complex interplay between cognitive and emotional factors in the development of social anxiety are discussed.     

Public relations practice in Japan: an exploratory study

Ninety-four (62%) survey responses in the Japanese language from 151 corporate public relations professionals in Japan were analyzed to investigate how Japanese management styles have changed since the recent economic recession, and how present management styles have impacted public relations practice in Japan. Findings suggest today’s Japanese management styles are not a static system unaffected by the economic pressures, and that current public relations practices in Japan align more closely with mixed models of public relations practiced in Western societies.     

Estimating the Size of a Subdomain: An Application in Auditing

This article suggests an alternative to the ratio estimator for estimating the total size of a subdomain of a population. The application that served as the genesis for this work is from auditing. The problem is to estimate the total of sales transactions that are not tax exempt from an audit sample of the population of nontaxed sales transactions. A superpopulation approach, which models the unit's probability of belonging to the subdomain as a function of its size, leads to a family of estimators. The simplest member of this famiiy is one in which that function is specified to be a constant. The optimal estimator for this model performs markedly better than the ratio estimator when the assumption is true and often performs better when it is not, though in that case it is biased. Stratification is shown to reduce this bias and at the same time make the ratio estimator more similar to the optimal estimator. A simulation experiment shows that the theoretical advantages hold in a real audit population.     

Ranked set sampling with concomitant variables

Ranked set sampling is a procedure which may be used to improve the precision of the estimator of the mean. It is useful in cases where the variable of interest is much more difficult to measure than to order. However, even if ordering is difficult, but there is an easily ranked concomitant variable available, then it may be used to “judgment order” the original variable. The amount of increase in the precision of the estimator is dependent upon the correlation between the 2 variables.     

Recursive location and scale estimators

It is shown that a recursive estimator with the same asymptotic properties as the median has convergence properties in finite samples which depend heavily on the scale of the data. A simple modification which adjusts for the scale is suggested and its application illustrated on simulated data. The modified estimator has much improved properties which are similar to those of the sample (non-recursive) median.     

Safety as a Fifth Dimension in Supervision: Stories from the Frontline

Child and family practice is recognised as a field of social work that has become increasingly complex. While evidence is growing in relation to effective supervision, there has been little research about the attributes of an effective supervisor, or the components of effective supervision. This paper reports on research undertaken in Victoria, Australia, which explored practitioners’ and supervisors’ experiences of effective supervision in this field. Data collection involved in-depth interviews with experienced supervisors and supervisees in order to explore the concept of effective supervision from participants’ perspectives. The data were systematically interrogated using a thematic inductive process, designed to enhance the voice of participants in the research. The study findings confirmed the complexity and centrality of the supervisory relationship, with the experience of a safe supervisory relationship proving essential. The importance of contemporary knowledge, leadership skills, and an enabling organisational and community context were also highlighted.