The influence of load on the lifetime distribution

This paper derives lifetime distributions for components that fail due to overloading. We introduce the notion of energy similarity. This makes it possible to use knowledge about how components behave under different loads in order to establish a probability model. To obtain parametric families, we consider two physically distinct cases: (1) components that function individually and (2) components that function as part of a system. The former leads to univariate and the latter to multivariate models. The results are particularly useful when little or no data is available.     

Christian Religion,Society and the State in the modern World

This paper is an attempt to explain why religious beliefs and practice have strongly declined in some parts of the world, in particular in Europe, while in other parts religion continues to play a central role in the public sphere and in private life. It is argued that the following factors determine the patterns of religiosity in contemporary Christian societies: substantive differences between religious doctrines and denominations with respect to theological teachings but also the use of rituals and symbols; the level of welfare state services; and the historical connections between church and state. These theses are empirically investigated in two ways: first, through a quantitative, multilevel analysis of the effects of individual and context variables on individual religiosity in 28 Christian countries around the world; and, second, through short case studies of four countries – Norway, Ireland, the United States and Chile – each exemplary of a specific type of state–church relations over time.     

Confidence Bounds For The Binomial N Parameter: A Classical Approach

A method is described for finding the distribution of an estimator for the parameter N of the binomial distribution in order to construct confidence bounds for N. Using a partition generating algorithm, tables of lower confidence bounds are provided for a range of values, illustrating the nature of the problems involved in estimating the parameters. Examples are considered and the lower bounds compared with the convenient approximate bounds due to Hoel (1947), suggesting the approximate bounds are appropriate more generally then originally thought.     

Two-stage factor screening procedures using multiple grouping assignments

A generalization of the group screening technique for finding the non-negligible factors in a first order model is presented. In conventional screening designs, each factor is assigned to a single factor group, and the sum of effects associated with each group is estimated in the first stage. The new designs assign a factor to multiple groups in the first stage. An individual effect is estimated in the second stage only if each group to which the corresponding factor is assigned is “active” in the first stage. The performance of these designs is compared to conventional group screening designs for cases in which the direction of each factor, if active, is assumed known a priori and measurement error is negligible.     

Transforming Policy Standards to Promote Equity and Developmental Success Among Latinx Children and Youth

The main goal of this social policy report is to propose a holistic approach for promoting developmental success among Latinx children and youth. This report highlights the need to 1) redefine success and 2) account for intersectional inequalities. First, the current demographic landscape of Latinx students is presented to showcase the variability in experiences among Latinx children and youth. We review past policies (across the last two and current U.S. Administrations and within the state of California), educational programs (e.g., McNair scholars' program, AVID), and theoretical frameworks (within developmental and sociocultural disciplines). Next, we introduce a nuanced holistic approach for promoting Latinx children and youth's developmental success, underscoring the integration of factors within the sociocultural, family, and individual domains. Finally, this report provides accessible recommendations for policymakers, researchers, and practitioners to effectively promote equity and developmental success among diverse groups of Latinx children and youth.     

Access or adaptation? A meta-analysis of surveys of problem gambling prevalence in Australia and New Zealand with respect to concentration of electronic gaming machines

It is widely believed that greater availability of electronic gaming machines (EGMs) has led to increases in problem gambling prevalence and related harms. It has also been proposed that individuals and populations adapt to exposure over time and that prevalence rates plateau or decline, even in the face of increasing availability. This study examines both hypotheses using a combined data set of 34 problem gambling surveys conducted in Australia and New Zealand since 1991. Strong statistically meaningful relationships were found for an increase in prevalence with increasing per capita density of EGMs, consistent with the access hypothesis and supported by no evidence of plateauing of prevalence with increasing density of EGMs. A decrease in prevalence over time with availability held constant is also evident, partially consistent with adaptation. It is likely that both forces are at work simultaneously, with implications for appropriate policy responses to gambling harm minimisation.     

Gambling behaviours and associated familial influences among 9-year old Pacific children in New Zealand

There is a paucity of research investigating child gambling, particularly studies that do not use retrospective designs. The presented findings provide cross-sectional data of the gambling behaviours of 874 9-year old Pacific children from a birth cohort study (recruited from one hospital) investigating health, developmental and social outcomes for Pacific children and their families in New Zealand. Structured interviews were administered to participants (mothers and children), face to face, in their homes (mothers) or school (children). Child gambling behaviours and associations with some maternal behaviours were investigated; five gambling participation questions were included in the child interview. Almost all child respondents (96%) reported having played card games with family or friends and 60% reported participation in housie (bingo), although only 27% reported having bet with money. Associations were noted between child gambling and household deprivation, and effectiveness of parental monitoring. There was no association between children's gambling and mothers' gambling. This is the first research to examine gambling in Pacific children at 9 years of age within a familial context. It will allow exploration of links between parental gambling and child development of gambling behaviours, as well as risk and protective factors for problem gambling at future data collection phases of the study.