Coefficients of Association Analogous to Pearson's r for nonparametric Statistics

The rz and rp coefficients of association are discussed. Both coefficients, like Pearson's r, are based on a z/z max framework. They yield coefficients directly comparable for all levels of measurement being based on an obtained/maximum departure from independence in z units interpretation. The r z coefficient can be applied to any nonparametric test statistic in which a normal approximation equation is appropriate. The rp coefficient is applicable to any nonparametric test statistic in which exact probabilities are known.Yeshttps://us.sagepub.com/en-us/nam/manuscript-submission-guideline

Core burnout and power in Portuguese nursing staff: An explanatory model based on structural empowerment

In the nursing context, structural empowerment has proved to be an organizational tool leading to the prevention of stress and burnout. Structural empowerment is defined as the perception of the presence or absence of empowering conditions in the workplace. However, few studies have explored the particular relationships between power in organizations, structural empowerment, and burnout. The aim of this study was to examine the mediator role of structural empowerment (access to opportunities, information, support, and resources) in the relationship between formal and informal power, and core burnout among Portuguese nurses. We administered a questionnaire among a convenience sample of 304 nurses employed in public hospitals. Model fit and mediation analysis were conducted using path analysis and bootstrapping methods. Formal power, informal power, access to opportunities, and access to resources were significant and negative predictors of core burnout. Opportunities, resources, and informal power had a direct influence on core burnout. Formal power and informal power showed an indirect influence, mediated by opportunities and resources, on core burnout. These findings suggest that by providing nurses with high levels of formal and informal power, as well as access to resources and opportunities, their risk of core burnout can be lowered.info:eu-repo/semantics/publishedVersio

The substantive and practical significance of citation impact differences between institutions: Guidelines for the analysis of percentiles using effect sizes and confidence intervals

In our chapter we address the statistical analysis of percentiles: How should the citation impact of institutions be compared? In educational and psychological testing, percentiles are already used widely as a standard to evaluate an individual's test scores - intelligence tests for example - by comparing them with the percentiles of a calibrated sample. Percentiles, or percentile rank classes, are also a very suitable method for bibliometrics to normalize citations of publications in terms of the subject category and the publication year and, unlike the mean-based indicators (the relative citation rates), percentiles are scarcely affected by skewed distributions of citations. The percentile of a certain publication provides information about the citation impact this publication has achieved in comparison to other similar publications in the same subject category and publication year. Analyses of percentiles, however, have not always been presented in the most effective and meaningful way. New APA guidelines (American Psychological Association, 2010) suggest a lesser emphasis on significance tests and a greater emphasis on the substantive and practical significance of findings. Drawing on work by Cumming (2012) we show how examinations of effect sizes (e.g. Cohen's d statistic) and confidence intervals can lead to a clear understanding of citation impact differences

Depression, drugs and dental anxiety in prisons:A mediation model explaining dental decay experience

Funding: Scottish Government (award number: 121.804485) and support from the Scottish Prison Service and participating NHS Boards.Objective To test a theoretical mediation model and investigate whether drug use and/or dental anxiety act as mediating factors between depression and dental decay experience among prisoners. Method A cross‐sectional survey was conducted on a convenience sample of 300 prisoners across three prison establishments in Scotland. Depression and dental anxiety were measured using the Centre for Epidemiological Studies Depression Scale and the Modified Dental Anxiety Scale, respectively. Drug use was assessed using three yes (scoring 1)/ no (scoring 0) questions: ‘ever taken (illegal) drugs’, ‘injecting drugs’ and ‘ever participated in a rehabilitation programme’. Participants had an oral examination to determine dental caries experience (missing [MT] and untreated decay [D3cvT]) in all four quadrants. Latent variable path analysis was conducted to test the mediation model. Results A total of 342 prisoners participated, of which 298 yielded a complete data set. Depression was associated with missing teeth and untreated decay (D3T) through an indirect pathway (Total standardized indirect effects = 0.11, P < .01) via drug use and dental anxiety (X2 [71] = 89.8, P = .07; Root Mean Square Error of Approximation: 0.03; Comparative Fit Index: 0.994 and Tucker‐Lewis index: 0.992). Twenty‐two percent of the variance in untreated decay and missing teeth was explained by both drug use and dental anxiety; however, the strongest predictor was drug use (total standardized direct effects = 0.45, P < .001). Conclusion A relatively simple model to assist understanding dental decay experience of people in prison has been proposed. The data collected were consistent with our specified model. Drug use acted as the primary mediator and dental anxiety as a secondary mediator between depression and dental decay experience. Given the co‐morbidity between mental health and drug use and dental decay experience, an integrated or shared approach is proposed. We recommend that future research should concentrate on building a firmer picture by replicating and extending the framework presented.PostprintPeer reviewe

Strengthening school readiness for Head Start children: Evaluation of a self-regulation intervention

The present study examined the efficacy of a self-regulation intervention for children experiencing demographic risk. Utilizing a randomized controlled design, analyses examined if children (N = 276 children in 14 Head Start classrooms; M age = 51.69, SD = 6.55) who participated in an 8-week self-regulation intervention demonstrated greater gains in self-regulation and academic achievement over the preschool year compared to children in a control group. In addition, indirect intervention effects on achievement outcomes through self-regulation were explored and differential intervention effects for English language learners within a sample of children from low-income families were tested. Results indicated that children in the intervention group demonstrated stronger levels of self-regulation compared to the control group in the spring of the preschool year. Group comparisons also revealed that the intervention was related to significantly higher math skills for children who were English language learners. In other words, English language learners who participated in the intervention demonstrated stronger levels of math in the spring of preschool in comparison to children in the control group and relative to English speakers who also participated in the intervention. The present study provides support for the efficacy of a school readiness intervention in promoting self-regulation and achievement in young children, especially English language learners.This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Elsevier and can be found at: http://www.journals.elsevier.com/early-childhood-research-quarterly/Keywords: Academic achievement, Self-regulation, Intervention, School readines

Living in Non-Parental Care Moderates Effects of Prekindergarten Experiences on Externalizing Behavior Problems in School

The current study examines the effects of prekindergarten quality and quantity on externalizing behavior problems for children living in non-parental care, compared to other children from socioeconomically at-risk backgrounds. Data were obtained from the Head Start Impact Study. Non-parental care was defined as a primary caregiver other than a biological, adoptive, or step-parent. The sample included 3029 children who attended center-based prekindergarten. Teacher-child conflict and more hours of prekindergarten predicted increased externalizing behavior problems for the full sample. Teacher-child closeness and overall process quality were only associated with externalizing behavior for children in non-parental care. Findings are discussed within a goodness-of-fit perspective in which the vulnerabilities of children in non-parental care explain how they respond to their prekindergarten experiences.Keywords: teacher-child relationships, early care and education quality, non-parental care, school readiness, externalizing behavior problems, prekindergarte

The images of psychiatry scale: development, factor structure, and reliability.

BACKGROUND: This analysis is based on a survey questionnaire designed to describe medical educators' views of psychiatry and psychiatrists. Our goals in this paper were to assess the psychometric properties of the survey questions by (a) using exploratory factor analysis to identify the basic factor structure underlying 37 survey items; (b) testing the resulting factor structure using confirmatory factor analysis; and (c) assessing the internal reliability of each identified factor. To our knowledge, this is the first attempt to use these techniques to psychometrically assess a scale measuring the strength of stigma that medical educators attached to psychiatry. METHODS: Survey data were collected from a random sample of 1,059 teaching faculty in 23 academic teaching sites in 15 countries. We conducted exploratory and confirmatory factor analysis to identify the scale structure and Cronbach's alpha to assess internal consistency of the resulting scales. RESULTS: Results showed that a two-factor solution was the best fit for the data. Following exploratory factor analysis, we conducted confirmatory factor analysis on a split half of the sample. Results highlighted several items with low loadings. Excluding factors with low correlations and allowing for several correlated variances resulted in a good fitting model explaining 95% of the variance in the data. CONCLUSIONS: We identified two unidimensional scales. The Images Scale contained 11 items measuring stereotypic content concerning psychiatry and psychiatrists. The Efficacy of Psychiatry Scale contained 5 items addressing perceptions of the challenges and effectiveness of psychiatry as a discipline

Party activism in the populist radical right: The case of the UK Independence Party

Recent decades have seen an upsurge of interest in populist radical right (PRR) parties. Yet despite a large body of research on PRR voters, there are few studies of the internal life of these parties. In particular, there is a dearth of research about why people are active in them. This article uses data from a unique large-scale survey of United Kingdom Independence Party (UKIP) members to investigate if drivers of voting support for these parties are also important for explaining party activism. Analyses show that traditional models of party activism are important for understanding engagement in UKIP, but macro-level forces captured in an expanded relative deprivation model also stimulate participation in the party. That said macro-level forces are not the dominant driver of activism

Multiple Motherhoods: The Effect of the Internalization of Motherhood Ideals on Life Satisfaction

Purpose – This study examined whether life satisfaction varied among women who occupy different motherhood statuses, and if these variations were influenced by differences in women’s internalization of cultural motherhood norms. We distinguished among women as biological mothers, stepmothers, and “double mothers,” who were both biological and stepmothers. We also included two groups of women without children: voluntary childfree and involuntary childless women. Design/methodology/approach – Data were drawn from the National Study of Fertility Barriers and analyzed using OLS regression. Findings – Biological mothers reported greater life satisfaction than women in other motherhood statuses. Accounting for the internalization of motherhood norms, double mothers had significantly lower life satisfaction compared to biological mothers, but voluntary childfree women had significantly greater life satisfaction. More detailed analyses indicated that internalization of cultural norms only appears to influence the life satisfaction of women with biological children. Research limitations/implications – The results suggest that it may not simply be motherhood that affects women’s well-being, but rather that women’s internalization of motherhood ideals, particularly when it corresponds with their motherhood status, significantly impacts well-being. Limitations of this study include small cell sizes for some categories of women where additional distinctions may have been useful, such as lesbian or adoptive mothers. Future work should incorporate diverse family forms and expand on the newly named category “double mothers.” Originality/value – By providing a more nuanced approach to categorizing motherhood status, including identifying double mothers, stepmothers-only, and two groups of childless women, the study added detail that has been overlooked in previous work on well-being