Negative emotionality,attachment quality,and behavior problems in early childhood

Negative emotionality, as well as attachment security and disorganization, are seen as major contributors to social adjustment and maladjustment in childhood. However, relatively little is known about whether infant negative emotionality and attachment quality operate together to affect developing behavior problems. The present study thus aims to contribute to this question. Participants were 64 healthy firstborn children and their primary caregivers. Negative emotionality was assessed at the infant ages of 4, 8, and 12 months using laboratory routines. At 18 months, the Strange Situation procedure was conducted to assess infant attachment security and disorganization, and at 30 months, the child's behavior problems were assessed within a structured clinical interview. Attachment security and attachment disorganization were significantly associated with subsequent behavior problems. There was no significant relation between infant negative emotionality and behavior problems. However, there were indications of a stronger association between attachment disorganization and behavior problems in infants high in negative emotionality. The results underpin the importance of attachment quality as well as negative emotionality in social adjustment. Disorganized attachment precedes poor adjustment, especially in infants high in negative emotionality.     

Virtual driving and risk taking: do racing games increase risk-taking cognitions, affect, and behaviors?

Research has consistently shown that aggressive video console and PC games elicit aggressive cognitions, affect, and behaviors. Despite the increasing popularity of racing (driving) games, nothing is known about the psychological impact of this genre. This study investigated whether playing racing games affects cognitions, affect, and behaviors that can promote risk taking in actual road traffic situations. In Study 1, the authors found that the frequency of playing racing games was positively associated with competitive driving, obtrusive driving, and car accidents; a negative association with cautious driving was observed. To determine cause and effect, in Study 2, the authors manipulated whether participants played 1 of 3 racing games or 1 of 3 neutral games. Participants who played a racing game subsequently reported a higher accessibility of cognitions and affect positively associated with risk taking than did participants who played a neutral game. Finally, on a more behavioral level, in Study 3, the authors found that men who played a racing game subsequently took higher risks in computer-simulated critical road traffic situations than did men who played a neutral game. Theoretical and practical implications are discussed.     

Security of multi-agent systems: A case study on comparison shopping

The multi-agent-systems paradigm is becoming more and more popular as a basis for realizing net-based solutions. This development is accompanied by an increasing relevance of security issues. For instance, the potential loss of privacy and other assets is a major concern for, both merchants and customers, in Internet-based commerce and, without being properly addressed, such very legitimate concerns hamper the growth of e-commerce.This article uses a comparison-shopping scenario to introduce a general methodology for formally verifying the security of multi-agent systems. Following the approach of possibilistic information flow security, the flow of information between and within agents is restricted in order to ensure that secrets will not be disclosed to unauthorized meddlers. The security requirements for the overall system are then decomposed into requirements for the individual agents that can be verified independently from each other. Exploiting the modular structure of a multi-agent system considerably reduces the complexity of the overall security analysis. The techniques for decomposing security requirements, for verifying individual agents, and for deriving global security guarantees for the entire system from locally verified properties are all generic in the sense that they apply also to many other systems and security requirements than the ones that appear in the example scenario.     

Body images of patients with anorexia nervosa, bulimia nervosa and female control subjects: a comparison with male ideals of female attractiveness

Body images of female patients with anorexia nervosa and bulimia nervosa were assessed against females without eating disorders and compared with male ideals of female attractiveness. A computer program was applied to examine body images of 62 patients with anorexia nervosa, 45 patients with bulimia nervosa, and 40 female and 39 male control subjects. Body size overestimation was most distinct in the two patient groups. Self-ideal discrepancy was highest in bulimia nervosa. Estimation of the society's ideal female body in all three female groups did not differ from men's perception of the most attractive female body. Congruence of ideals of female attractiveness in patients, female, and male control subjects and described differences between patients and female controls support the theory that body image disturbance is a problem of processing self-referential information regarding body image rather than a problem of processing body image related information per se.     

Life Satisfaction and Associated Factors Among People Aged 60 Years and Above in Six European Countries

Life satisfaction is a concept frequently used to measure wellbeing of older people. However, there is still a lack of cross-national comparative research investigating factors associated with life satisfaction. There may be unique and common factors associated with life satisfaction across European countries. This study aimed to investigate life satisfaction among people aged 60–89 years in six European countries in relation to health problems, ADL capacity, self-esteem, social and financial resources. A cross-sectional study was performed, including 7,699 people aged 60–89 years, in Sweden, the UK, The Netherlands, Luxemburg, Austria and Italy, participating in the European Study of Adult Wellbeing, using questions from the Older Americans Resources and Services schedule, Multidimensional Functional Assessment Questionnaire, Life Satisfaction Index Z and Rosenberg’s Self-esteem scale. Logistic regression analysis was performed to determine factors associated with life satisfaction in the six national samples. In cases where people were less satisfied with their life it was fairly satisfactory and unsatisfactory social contacts (Odds Ratio (OR) 1.5–13.8), poor financial resources (OR 1.7–15.1), feeling greatly hindered by health problems (OR 2.2–5.4) and self-esteem (OR 2.1–5.1) rather than the ability to perform activities of daily living and the extent of social contacts that gave the greatest risk of low life satisfaction in all the six European countries. There were both common and country-specific factors important for life satisfaction in the six European countries. However, the importance of satisfactory social contacts, financial resources, self-esteem and feeling hindered by health problems seems universal in the six included countries and thus important to target in preventive interventions.     

The effects of authentic and contrived dissent on escalation of commitment in group decision making

Escalation of commitment refers to the tendency to persist with or even intensify losing courses of action. In this study, we examined whether authentic and contrived dissent reduces escalation in group decision making. Participants first individually indicated their preference on how to allocate money between two alternatives. Based on these individual preferences, homogeneous and heterogeneous three‐person groups were formed. In addition, group discussion was either structured by assigning one group member to play the role of a devil's advocate or was not structured. Results revealed that escalation tendencies over multiple decisions were reduced in heterogeneous groups that used the devil's advocacy procedure. The rationality of this behavior is discussed. Copyright © 2008 John Wiley & Sons, Ltd.     

Preference-based escalation: A new interpretation for the responsibility effect in escalating commitment and entrapment

A prominent finding in escalating commitment and entrapment research is the “responsibility effect”: people invest more in a losing course of action or persist with it for longer if they themselves initiated this action (responsibility) as opposed to if it was assigned to them. We argue that this effect is driven by participants’ preferences. Responsible participants usually prefer the chosen alternative since they have chosen it themselves. Non-responsible participants, in contrast, represent a mix of persons who either favor or disfavor the chosen alternative. In two experiments, we demonstrate that responsible participants favor the chosen course of action more strongly than non-responsible participants do, that these preferences facilitate reinvestment in and persistence with the chosen course of action, and that responsibility has no effect over and above this effect of preferences. Non-responsible participants preferring the chosen course of action made similar reinvestments and exhibited similar persistence as responsible participants.     

Effects of a flexible work-time design on employee- and company-related aims

This article addresses the effects of flexible work-time designs on employee- and company-related aims. Using objective and self-reported quantitative and qualitative data the current study examines the effects of a flexible work-time design that was introduced in a service company in Germany. Building on the learning hypothesis of the job demands?–?control model, we predicted that a highly flexible work-time design that provides employees with high demands but at the same time also with a high degree of autonomy, and self-determination over their working time leads to positive effects on employee's personal development and learning opportunities. The results supported this hypothesis. However, in addition to employee-related benefits the results also suggested benefits for the company, such as an increase in adherence to company goals. Moreover, the objective data showed a lower degree of absenteeism and higher work quality compared to the control group working with the traditional work-time design. Theoretical and practical implications are discussed.