Uncertainty with ordinal likelihood information

We present a model that is closely related to the so-called models of choice under complete uncertainty, in which the agent has no information about the probability of the outcomes. There are two approaches within the said models: the state space-based approach, which takes into account the possible states of nature and the correspondence between states and outcomes; and the set-based approach, which ignores such information, and solves certain difficulties arising from the state space-based approach. Kelsey (Int Econ Rev 34:297–308, 1993) incorporates into a state space-based framework the assumption that the agent has ordinal information about the likelihood of the states. This paper incorporates this same assumption into a set-based framework, thus filling a theoretical gap in the literature. Compared to the set-based models of choice under complete uncertainty we introduce the information about the ordinal likelihood of the outcomes while, compared to Kelsey’s approach, we incorporate the advantages of describing uncertainty environments from the set-based perspective. We present an axiomatic study that includes adaptations of some of the axioms found in the related literature and we characterize some rules featuring different combinations of information about the ordinal likelihood of the outcomes and information about their desirability.     

Procesos escabrosos en Psicología Social: el concepto de norma perversa

Resumen

Se analiza el peso relativo del nivel de violencia marital observada, y de la responsabilidad atribuida a los progenitors por sus conflictos, en la predicción de la violencia de pareja. De esta forma, se estudia el papel de la interpretación de la experiencia violenta en el proceso de transmisión. La investigación se llevó a cabo con sesenta parejas de universitarios. Los resultados confirman la importancia de la responsabilidad que se atribuye a los progenitores en la predicción de la transmisión de la violencia de pareja. Asimismo, sugieren que una interpretación de la violencia interparental más favorable al progenitor del mismo sexo sitúa a los hijos en una situación de mayor riesgo.     

Resilience of Families Living in Poverty

ABSTRACT

The purpose of this paper is to examine the ways that community social workers reflect the established literature on family resilience. This exploratory study involved semistructured group interviews with community social workers from an urban agency that serves families who are poor. The analysis was completed by comparing Walsh's “Key Processes in Family Resilience” with the responses from the participants in the group interviews. Specifically, Walsh (2002 Walsh , F. ( 2002 ). A family resilience framework: Innovative practice approaches . Family Relations , 51 ( 2 ), 130 – 137 .[Web of Science ®] , [Google Scholar]) identifies three domains of resilient families, including belief systems, organizational patterns, and communication processes. These were used as reference points for comparison. The interviews with the community social workers revealed a connection between using positive beliefs, thinking, and taking action steps that define a resilient family. This only becomes possible in the context of supportive internal family relations and external community connections. While the community social workers affirm elements of the established models of family resilience, they also emphasized its dynamic nature as the interplay of positive family beliefs combined with action steps and support from the community.     

Poetry in motion: protest songwriting as strategic resource (Portugal,circa 1974)

In this article, we use protest songs written in Portugal in the periods surrounding the Carnations Revolution to suggest that artists have the capacity to use their artistic discourses as strategic resources, attempting to shape socio‐political reality. We identify three periods in the Portuguese revolution wherein this instrumental use of art becomes patent. We further suggest that organisational managers should take into account the subjective artistic reality, especially in periods when it can affect the organisational context.     

A self-comfort oriented pattern of regulatory behavior and avoidant attachment are more likely among infants born moderate-to-late preterm

Infants born preterm (<37 gestational weeks, GW) are at increased risk for regulatory difficulties and insecure attachment. However, the association between infants' regulatory behavior patterns and their later attachment organization is understudied in the preterm population. We addressed this gap by utilizing a Portuguese sample of 202 mother–infant dyads. Specifically, we compared the regulatory behavior patterns of 74 infants born moderate-to-late preterm (MLPT, 32–36 GW) to those of 128 infants born full-term (FT, 37–42 GW) and evaluated the associations of these regulatory patterns with later attachment. Infants' regulatory behavior patterns (Social-Positive Oriented, Distressed-Inconsolable, or Self-Comfort Oriented) were evaluated in the Face-to-Face-Still-Face paradigm at 3 months, and their attachment organization (secure, insecure-avoidant, or insecure-ambivalent) was evaluated in the Strange Situation at 12 months corrected age. In both samples, the Social-Positive-Oriented regulatory pattern was associated with secure attachment; the Distressed-Inconsolable pattern with insecure-ambivalent attachment; and the Self-Comfort-Oriented pattern with insecure-avoidant attachment. However, compared to FT infants, infants born MLPT were more likely to exhibit a Self-Comfort-Oriented pattern and avoidant attachment. Most perinatal and demographic variables were not related to infant outcomes. However, infants with a higher 1-min Apgar were more likely to exhibit the Social-Positive-Oriented regulatory pattern and secure attachment.     

Teaching Children with Autism to Mand for Information Using “Why?” as a Function of Denied Access

The current study evaluated a procedure used to teach two children with autism to ask “why” questions maintained by causal information about an event. To increase the value of information as a reinforcer, the experimenter denied access to preferred items and did not provide a reason for the denial. Participants were taught to ask “why” questions and were provided with information that led them to access preferred items. To ensure that “why” questions only occurred when the information was valuable, we included a condition wherein access to preferred items was restricted but causal information was available. Both participants learned to ask “why” questions when causal information was not available and refrained from asking “why” questions when causal information was available.     

Characteristics of Companies Targeted by Social Proxies: An Empirical Analysis in the Context of the United States

We compare the traits of companies receiving social policy shareholder resolutions with those of a set of matching firms. We show that targeted firms tend to be much larger and riskier, less profitable and less socially performing than their counterparts. The five largest investors in firms receiving social proxies tend to hold a lower stake in those firms vis‐à‐vis the matching firms. Firms in both samples, however, are not statistically different in terms of percentages of shares held by institutional and insider investors. We provide possible explanations for our results.     

Diaspora,Community and Communication: Internet Use in Transnational Haiti

Abstract With its capacity to link many people interactively across great distances, the Internet seems to be the ultimate tool for dispersed ethnic groups wishing to sustain identity in an ‘alien’ land and work in solidarity with those facing challenges at ‘home’. Some theorists speak of the creation of diasporic public spheres arising from creative use of Internet technologies. Nevertheless, scholars working in this area rarely embed their analyses within existing work on the public sphere. In the present study I use insights from public sphere theory to evaluate participants' use of a Haiti Global Village forum. After examining Haiti Global Village, I conclude that such forums offer needed space for civic deliberation and provide a valuable infrastructure for networking. Participants' difficulty in translating these assets into an off‐line project, however, highlights the importance of place‐based social ties. Consideration of the experience of other Haitian forums reinforces the importance of such ties.     

Small-sample comparisons for powerdivergence goodness-of-fit statistics for symmetric and skewed simple null hypotheses

Power-divergence goodness-of-fit statistics have asymptotically a chi-squared distribution. Asymptotic results may not apply in small-sample situations, and the exact significance of a goodness-of-fit statistic may potentially be over- or under-stated by the asymptotic distribution. Several correction terms have been proposed to improve the accuracy of the asymptotic distribution, but their performance has only been studied for the equiprobable case. We extend that research to skewed hypotheses. Results are presented for one-way multinomials involving k = 2 to 6 cells with sample sizes N = 20, 40, 60, 80 and 100 and nominal test sizes f = 0.1, 0.05, 0.01 and 0.001. Six power-divergence goodness-of-fit statistics were investigated, and five correction terms were included in the study. Our results show that skewness itself does not affect the accuracy of the asymptotic approximation, which depends only on the magnitude of the smallest expected frequency (whether this comes from a small sample with the equiprobable hypothesis or a large sample with a skewed hypothesis). Throughout the conditions of the study, the accuracy of the asymptotic distribution seems to be optimal for Pearson's X² statistic (the power-divergence statistic of index u = 1) when k > 3 and the smallest expected frequency is as low as between 0.1 and 1.5 (depending on the particular k, N and nominal test size), but a computationally inexpensive improvement can be obtained in these cases by using a moment-corrected h² distribution. If the smallest expected frequency is even smaller, a normal correction yields accurate tests through the log-likelihood-ratio statistic G² (the power-divergence statistic of index u = 0).