Bayesian inference for graphical factor analysis models

We generalize factor analysis models by allowing the concentration matrix of the residuals to have nonzero off-diagonal elements. The resulting model is named graphical factor analysis model. Allowing a structure of associations gives information about the correlation left unexplained by the unobserved variables, which can be used both in the confirmatory and exploratory context. We first present a sufficient condition for global identifiability of this class of models with a generic number of factors, thereby extending the results in Stanghellini (1997) and Vicard (2000). We then consider the issue of model comparison and show that fast local computations are possible for this purpose, if the conditional independence graphs on the residuals are restricted to be decomposable and a Bayesian approach is adopted. To achieve this aim, we propose a new reversible jump MCMC method to approximate the posterior probabilities of the considered models. We then study the evolution of political democracy in 75 developing countries based on eight measures of democracy in two different years. We acknowledge support from M.U.R.S.T. of Italy and from the European Science Foundation H.S.S.S. Network. We are grateful to the referees and the Editor for many useful suggestions and comments which led to a substantial improvement of the paper. We also thank Nanny Wermuth for stimulating discussions and Kenneth A. Bollen for kindly providing us with the data-set.     

On the Plasticity of Self-Defense

Many qualitatively different mechanisms for regulating self-esteem have been described in the literature. These include, for example, reduction of cognitive dissonance, self-affirmation, and social comparison. The work reviewed here demonstrates that despite their differences, these mechanisms may be substitutable for one another. For example, a threat to self via cognitive dissonance can affect attempts to maintain self-esteem via social comparison. This implies that these mechanisms are serving the same, unitary goal of maintaining self-esteem. Thus, there is surprising generality or flexibility in the processes used to maintain self-esteem. Substitution of one mechanism for another may depend on the transfer of affect. The issue of substitutability across domains is briefly discussed.     

Self-evaluative effects of temporal and social comparison

Social and temporal comparisons are two fundamental information sources for evaluating one’s characteristics and abilities. The current study demonstrates that when social comparison (where people’s performance stood in the overall distribution) and temporal comparison (whether performance improved or deteriorated over time) information are both provided, each independently influences actors’ self-evaluations of task performance and ability. In contrast, yoked observer participants paid virtually no attention to temporal comparison information, preferring to evaluate actors based solely on their status relative to others. Furthermore, when the feedback actors received suggested that they were getting worse, their self-evaluation ratings were approximately equal to that of the observers who had access to the same information. However, when their fortunes improved over time, actors used this temporal information as a basis for evaluating themselves more favorably than observers. We argue that both egocentrism and self-enhancement account for the differences between actors’ and observers’ performance evaluations.     

Low ranks make the difference: How achievement goals and ranking information affect cooperation intentions

This investigation tested the joint effect of achievement goals and ranking information on information exchange intentions with a commensurate exchange partner. Results showed that individuals with performance goals were less inclined to cooperate with an exchange partner when they had low or high ranks, relative to when they had intermediate ranks. In contrast, mastery goal individuals showed weaker cooperation intentions when their ranks were higher. Moreover, participants’ reciprocity orientation was found to mediate this interaction effect of achievement goals and ranking information. These findings suggest that mastery goals are more beneficial for exchange relationships than performance goals in terms of stronger reciprocity orientation and cooperation intentions, but only among low-ranked individuals.     

The Impact of Culture on Loss Aversion

Based on the literature on the relationship between culture, emotion, and loss aversion, we derive that culture can influence the degree of loss aversion. To test our hypotheses, we conduct a standardized survey in 53 countries worldwide that includes the questions from the Hofstede survey on cultural dimensions as well as lottery questions on loss aversion. The results show that individualism, power distance, and masculinity increase loss aversion as predicted, whereas the impact of uncertainty avoidance is less significant. Moreover, we also find a relation between the distribution of major religions in a country and loss aversion. In comparison, the connection of loss aversion to macroeconomic variables seems to be much smaller. Copyright © 2016 John Wiley & Sons, Ltd.     

Child Maltreatment in Vietnam: Prevalence and Cross-Cultural Comparison

This Vietnam prevalence study on child maltreatment (VPM-2014) was designed to examine the prevalence of child maltreatment in Vietnam and to compare it with the child maltreatment prevalence in the Netherlands using the same measures and procedure. Questionnaires were filled out by 1,851 students aged 12 to 17 years (47.3% were boys). Results indicated that half of the students (49.9%) reported at least 1 event of child maltreatment in the past year. Emotional abuse was most frequently reported (31.8%), followed by physical abuse, neglect, and witnessing parental conflict. Sexual abuse was the least prevalent (2.6%). Compared with the Netherlands, the prevalence rates of most types of child maltreatment were higher in Vietnam: The largest difference was with emotional abuse, followed by neglect, physical abuse, and witnessing parental conflict. Only the past-year sexual abuse prevalence in Vietnam was lower. These findings highlight the alarming problem of child maltreatment in Vietnam.     

社交网站使用与妒忌:向上社会比较的中介作用及自尊的调节作用

采用方便抽样法对630名具有社交网站使用经验的大学生进行问卷调查,探讨社交网站使用对妒忌的影响,以及向上社会比较、自尊在其中的作用机制。结果表明:(1)社交网站使用显著正向预测妒忌;(2)向上社会比较在社交网站使用与妒忌之间起部分中介作用;(3)该中介效应受到自尊的调节。具体来说,相对于高自尊大学生,低自尊大学生的向上社会比较产生更多妒忌。     

Envy and admiration: emotion and motivation following upward social comparison

Two key emotions people can experience when someone else is better than them are envy and admiration. There are conflicting findings in the scientific literature on which behaviour is elicited by these emotions. In one study (with two samples, total N?=?345), we test which motivations are triggered by envy and admiration. The main finding is that (benign) envy and admiration both lead to a motivation to improve oneself. This confirms earlier findings that admiration leads to a motivation to affiliate with the admired other and a motivation to improve one's own position. Furthermore, it supports the idea that envy can lead to both a motivation to improve oneself and a motivation to pull down the envied other, finding support for a subtypes theory of envy.     

Cultural Variation in the Development of Beliefs About Conservation

Examining variation in reasoning about sustainability between diverse populations provides unique insight into how group norms surrounding resource conservation develop. Cultural institutions, such as religious organizations and formal schools, can mobilize communities to solve collective challenges associated with resource depletion. This study examined conservation beliefs in a Western industrialized (Austin, Texas, USA) and a non-Western, subsistence agricultural community (Tanna, Vanuatu) among children, adolescents, and adults (N = 171; n = 58 7–12-year-olds, n = 53 13–17-year-olds, and n = 60 18–68-year-olds). Participants endorsed or rejected four types of justifications for engaging in land and animal conservation: sustainability, moral, religious, or permissible. In both populations, participants endorsed sustainability justifications most frequently. Religious justifications increased with age in Tanna and decreased with age in Austin. Tannese participants were also more likely to endorse multiple justifications for conservation than Austin participants. Data across all justification types show a main effect of age in both communities; endorsement of conservation decreased with age in Austin, but increased with age in Tanna. Across age groups, participants were more likely to endorse the conservation of animals than land in Austin, yet equally as likely to endorse the conservation of land and animals in Tanna. Overall, these results reveal similarities and differences in the beliefs that support the conservation of natural resources across populations.