Properties of hypothesis testing techniques and (Bayesian) model selection for exploration‐based and theory‐based (order‐restricted) hypotheses

In this paper, the performance of six types of techniques for comparisons of means is examined. These six emerge from the distinction between the method employed (hypothesis testing, model selection using information criteria, or Bayesian model selection) and the set of hypotheses that is investigated (a classical, exploration‐based set of hypotheses containing equality constraints on the means, or a theory‐based limited set of hypotheses with equality and/or order restrictions). A simulation study is conducted to examine the performance of these techniques. We demonstrate that, if one has specific, a priori specified hypotheses, confirmation (i.e., investigating theory‐based hypotheses) has advantages over exploration (i.e., examining all possible equality‐constrained hypotheses). Furthermore, examining reasonable order‐restricted hypotheses has more power to detect the true effect/non‐null hypothesis than evaluating only equality restrictions. Additionally, when investigating more than one theory‐based hypothesis, model selection is preferred over hypothesis testing. Because of the first two results, we further examine the techniques that are able to evaluate order restrictions in a confirmatory fashion by examining their performance when the homogeneity of variance assumption is violated. Results show that the techniques are robust to heterogeneity when the sample sizes are equal. When the sample sizes are unequal, the performance is affected by heterogeneity. The size and direction of the deviations from the baseline, where there is no heterogeneity, depend on the effect size (of the means) and on the trend in the group variances with respect to the ordering of the group sizes. Importantly, the deviations are less pronounced when the group variances and sizes exhibit the same trend (e.g., are both increasing with group number).     

A matter of font type: The effect of serifs on the evaluation of scientific abstracts

Text‐based communication is one of the substantial ways of spreading scientific information. While the content and contextual aspects of written words have been widely researched, the impact of font characteristics on text perception is an almost blank page. The following study deals with the influence of serifs on the evaluation of online‐presented scientific abstracts. Yet there is only evidence for faster reading times when texts are presented in sans‐serif fonts, although the opposite is stated in parts of the literature. The present work examines if the presence or absence of serifs also have an impact on the appraisal of scientific texts when all other important font characteristics do not change. For this purpose, 188 university students participated in an online experiment and rated different aspects of scientific abstracts as well as of the research outlined in the abstracts. The results show that missing serifs led to increased reading speed. However, and in contrast to the perceptual fluency hypothesis, the presence of serifs had a positive effect on all evaluation dimensions. The results of a second study with 187 participants also indicated that reading fluency counteracted the liking of texts. Implications for future studies and media production are discussed.     

Affirmation and Care: A Feminist Account of Bullying and Bullying Prevention

Despite the amount of attention that activists, educators, psychologists, and the media place on bullying and bullying prevention, there has been no sustained philosophical reflection on bullying, nor has there been a feminist analysis of the growing literature on bullying. This essay seeks to satisfy those two needs. The first section is a broad introduction to the literature on bullying. I define bullying and distinguish it from teasing, sassing, roughhousing, and other more benign interactions. I also outline two common solutions to bullying: zero‐tolerance policies and “ecological” interventions. The second section uses feminist ethics of care to analyze the effectiveness of each approach. I argue that ecological approaches to bullying are preferable to zero‐tolerance policies because they operate on a relational model of the self and identity‐formation. I elaborate a notion of affirmation as the mechanism that stabilizes and solidifies our sense of self across time. I then use affirmation to analyze three things: why people bully one another, the specific harm inflicted by bullying, and why ecological approaches are more effective in reducing bullying. The third section uses my account of affirmation to critique the scientism and troublingly gendered assumptions that underlie much of the work on bullying.     

How training and promotion opportunities,career expectations,and two dimensions of organizational justice explain discretionary work effort

Contemporary work is highly interdependent, requiring discretionary work effort (DWE) in response to colleagues and customers. According to social exchange theory, organizational support encourages DWE as a form of employee reciprocation. Our model integrating social exchange and expectancy theory anticipates future career returns from organizational support in the form of training and promotion opportunity. Positive career expectations strengthen feelings of employee obligation that are realized in higher levels of DWE. In addition, career expectations are heightened when these opportunities are provided under procedurally just conditions. Furthermore, the relationship between career expectation and felt obligation is strengthened when interactional justice is high. Using structural equation modeling, these hypotheses are successfully tested on a survey of 201 bank employees and their supervisors. Implications for research and practice are discussed.     

Ideal Positions: 3D Sonography,Medical Visuality,Popular Culture

As digital technologies are integrated into medical environments, they continue to transform the experience of contemporary health care. Importantly, medicine is increasingly visual. In the history of sonography, visibility has played an important role in accessing fetal bodies for diagnostic and entertainment purposes. With the advent of three-dimensional (3D) rendering, sonography presents the fetus visually as already a child. The aesthetics of this process and the resulting imagery, made possible in digital networks, discloses important changes in the relationship between technology and biology, reproductive health and political debates, and biotechnology and culture.     

To Know Ourselves: Possible Meanings of Canadian Pornography

All television broadcasters in Canada are required to meet Canadian content regulations. This requirement includes sexually explicit adult channels. Whenever this requirement comes to the attention of the media, through a license application or hearing, there is comic speculation about what might be considered Canadian content in pornography. However, a review of some adult films made in Canada show a distinct Canadian pornography already exists. As with other cultural industries, the pornographic film industry in Canada exists in the shadow of American domination, but survives through various means such as product differentiation, appeals to nationalism, and government support. These factors create conditions that encourage distinct pornography. This paper also considers possible cultural implications of a distinct national pornography, the role of the government in controlling pornographic content through extra-legal means, and the implications of that control.     

Well-Being’s Relation to Religiosity and Spirituality in Children and Adolescents in Zambia

The relations among dimensions of subjective well-being (i.e., happiness and life satisfaction), spirituality and religiousness were assessed in children (aged 7–12, n = 391) and adolescents (aged 13–19, n = 902) in Zambia. These participants were sampled from schools in both urban and rural regions that represented a relatively wide range of affluence. Participants self-reported their happiness using the Faces Scale and the Subjective Happiness Scale, and their life satisfaction using the Student Life Satisfaction Scale. The surveys were available in English as well as two local languages, and were delivered in classroom settings. To assess religiosity, participants were asked about the frequency that they attended church and about the importance of religion in their life. To assess spirituality, participants were asked about whether they considered themselves to be a spiritual person and about the nature domain of spirituality (e.g., “I feel connected to nature”). Results indicated that age, gender, grade and religiosity were not strong predictors of children’s well-being. However, spirituality accounted for 21 % of the variance in life satisfaction beyond these demographic variables and religiosity, but did not account for additional variance in happiness. The results were similar for adolescents except that the demographic variables were weakly predictive of their life satisfaction, and religiosity was a modest predictor of their happiness. Spirituality predicted variance in happiness and life satisfaction more so among adolescents than among children. These results confirm earlier work showing that spirituality, but not necessarily religiosity, is associated with children’s and adolescents’ well-being.     

Nostalgia motivates pursuit of important goals by increasing meaning in life

This research focused on existential and motivational implications of the emotion of nostalgia. Nostalgia (relative to control) increased meaning in life, which, in turn, galvanised intentions to pursue one's most important goal (Experiment 1) and to pursue one's most important, but not least important, goal (Experiment 2). The basic pattern held in two cultures (British and Danish) independently of positive affect. This is the first evidence that nostalgia has specific motivational consequences (i.e., pursuit of more, but not less, important goals) and transmits these consequences via meaning in life. Also, this is the first evidence that meaning is associated with specific motivational consequences. Discussion considers the relevance of the findings for the emotion and motivation literatures.     

Exploring identities between the religious and the secular through the attendees of an ostensibly ‘Atheist Church’

The Sunday Assembly has a complex relationship with atheism and religion. It holds events which look and feel like religious worship, but uses this format to create a ‘godless congregation’. Described as an ‘atheist church’ by the media, members prefer to talk about inclusive communities. If the Sunday Assembly simultaneously embraces and rejects both atheism and religion, then how do attendees identify and describe themselves? We add to the growing literature exploring identities between the religious and the secular, presenting a qualitative study based on interviews with Sunday Assembly attendees. We interrogate three concepts: non-religion, the secular sacred and indifferentism to examine how the identity of Sunday Assembly attendees can be better understood. Our findings show that a significant number of attendees publicly identify as indifferent towards religion, while privately maintaining a more strongly non-religious identity, thus suggesting that for Sunday Assembly attendees, inclusivity is imperative.     

Nostalgia and Satisfaction with Life: A Behavioral Genetic Analysis

Journal of Happiness Studies - Nostalgia, a bittersweet but predominantly positive emotion, arises from self-relevant and social memories. Evidence suggests that nostalgia is a potential source of...