An improved cluster two-stage randomized response model

In this paper, Abdelfatah and Mazloum's (2015) two-stage randomized response model is extended to unequal probability sampling and stratified unequal probability sampling, both with and without replacement. The extended models result in more efficient estimators than Lee et al.'s (2014) estimators of the proportion of the population having a sensitive attribute.     

What shapes plant and animal diversity on urban golf courses?

Recent concern over increasing loss of biodiversity has prompted considerable interest in the role of urban green spaces as reservoirs of local biodiversity. This study assessed the diversity of three indicator taxa - plants, ants and birds - on golf courses spanning a wide range of environmental variation in terms of climate, elevation, course age, size and connectivity to native woodland. Species richness and community composition was further compared between contrasting on-course habitat types that reflect different management intensities. We identified a set of taxon-specific environmental correlates indicating an intricate interplay of landscape- and local-scale variables that affect local species diversity. Our results show that floristic diversity is positively associated with the amount of rainfall, whereas ant and bird diversity are related to local-scale factors, particularly the number of trees and the size of water features on a site. The amount of on-course native habitat was a strong predictor of plant and ant diversity and was also associated with the number of unique species at the site level; this reinforces the value of remnant habitat patches as local biodiversity reservoirs that represent mini hot-spots in an otherwise species-poor urban landscape. Community composition for all three taxa differed markedly between non-playing and playing areas, with boundary and remnant habitats generally having more diverse, species-rich communities. Our results suggest that local floral and faunal biodiversity on urban golf courses can be enhanced by creating woody non-playing areas and, especially, by preserving, restoring or expanding remnant habitats.     

Understanding end-user perspectives to enhance perceived value uptake of harm-minimization tools: considering gambler’s views of a pre-commitment system

Harm-minimization strategies reduce the experience of gambling-related harms for individuals and those close to them. Most policies and particularly discussions of tool design and implementation fail to involve end users and consider their concerns and needs. This study aimed to investigate the best way to introduce a harm-minimization tool for electronic gaming machines (EGMs) that will maximize the perceived value and subsequent uptake by the intended audience of gamblers. Focus groups were conducted with 31 Australian regular EGM gamblers experiencing a range of gambling problems. Participants were asked their perspectives of a pre-commitment system (features including accessing activity statements, setting limits, viewing dynamic messages, taking breaks), including concerns, and how to enhance perceived value and usefulness. Positive attitudes about the system were expressed; however, many gamblers saw the tool as relevant only for problem gamblers. Participants indicated that value could be enhanced by making the system flexible and customizable, but still easy to use. Design and implementation strategies such as incorporating flexibility in features, ease of use, appropriate terminology, and educational efforts may address gamblers’ concerns, particularly regarding privacy and potential stigma. This would enhance user perception of harm-minimization tools as relevant and may subsequently enhance effectiveness.     

The sustainability of Egan’s Skilled Helper Model in students’ social work practice

This paper investigates the nature of students’ learning of the Egan Skilled Helper model in enabling them to develop collaborative communication skills which place service-users at the centre of decision making. The paper is a follow-up to an earlier paper which found that the Egan model was helpful to students as a communication and problem management tool and that they had transferred their learning into practice. The current study involves seven students from the first study and examines whether their knowledge and skills from learning the model in year one have been sustained two years later during their third year practice placement. A key finding is that participants were continuing to use most stages of the model (with the exception of challenging skills) with service-users in a variety of settings. Further findings are that the model is still useful in situations where goals are set by social workers rather than by service-users; and that it is the utilisation of role-play when learning the model which most embeds skills. The implications of these findings for skills training are discussed together with suggestions for further focus.     

Grandchildren's perspectives on grandparents in rural New Zealand

Within studies of ageing, rurality and family relations, the prevalent “point of view” is based on the perspectives of adults, particularly older people themselves. However, taking seriously the reciprocal nature of kinship relations also challenges researchers to find ways to explore younger people's views and experiences of intergenerational ties. The study on which this paper is based addressed this challenge, by considering the dynamics of ageing in rural families through the lens of young people's experience. In the South Island of New Zealand, Area Schools serve families in rural regions specifically defined in terms of a catchment area based on distance from any other state school. This research study selected five (from 16) of these schools, and invited the classes of Year 7 and 8 students to take part in a classroom activity, led by the researcher with support from the class teacher. The activity involved a total of 98 young people (aged 11–13) in written completion of a survey which outlined their relationships and contacts with the people they know as grandparents, along with basic demographics of their own age, gender, family and household situation, and length of attendance at the school. From this survey, information was derived about 380 grandparents (of whom 73 were no longer alive), the nature and frequency of their contacts, and the types of activities they shared with these grandchildren. Around 40 percent of the students have daily or weekly contact with a grandparent, one third “regularly do things together”, and one fifth say they have “a special relationship” with a grandparent. By controlling the age group of the grandchild, and focussing on rural families, this study adds insights and detail to a growing body of research interest in understanding the roles and contributions made by grandparents to New Zealand families, in particular those in rural communities.     

Are Psychology University Student Gamblers Representative of Non-university Students and General Gamblers? A Comparative Analysis

Students recruited from psychology undergraduate university populations are commonly used in psychology research, including gambling studies. However, the extent to which the use of this subpopulation produces findings that can be extrapolated to other groups is questionable. The present study was designed to compare results from university-recruited psychology student gamblers to those obtained from a sample of gamblers recruited from the general population that also included students. An online survey measuring gambling behavior and Internet gambling, attitudes and knowledge about gambling and problem gambling severity was posted on websites accessed by gamblers. Participants were recruited from two sources, a psychology undergraduate university population (n = 461) and online websites (n = 4,801). Results showed university-recruited students differed significantly from both adults and students recruited from the general population in respect to demographic variables and gambling behavior. Psychology undergraduate students were younger, more likely to be female, and had lower incomes. When relevant demographic variables were controlled, psychology undergraduate students were found to gamble less frequently, at different times, and to be at lower-risk for gambling-related problems, but had more irrational beliefs and more negative attitudes towards gambling than gamblers recruited from the general population. Results suggest that caution should be used in extrapolating findings from research using university-recruited psychology student gamblers to wide community populations due to differences related to gambling thoughts, attitudes and behaviors.