Fairness and bargaining power in threshold public goods experiments

Experiments on three two‐person threshold public good provision games, namely, the simultaneous, sequential, and dictator games, are conducted to explore the motives behind giving. Players who move simultaneously are endowed with equal bargaining power, and players who move first are endowed with more bargaining power than players who move subsequently. Dictators are indubitably endowed with complete bargaining power. Since the differences between the bargaining powers of two players increase from the simultaneous to the sequential to the dictator game, comparisons among games allow us to trace whether the contribution behavior is motivated by fairness or is simply due to the strategic concern. The experimental evidence shows that the strategic concern explains the overall contribution behavior better than the motive of fairness. However, in the final round 26% of the dictators share the threshold evenly with their opponents, suggesting that some subjects do play fairly. Copyright © 2007 John Wiley & Sons, Ltd.     

Dissolving the diaspora: Dialogical practice in the development of deep multiculturalism

This article is an exposition of deep or critical multiculturalism that is grounded in a mutually respectful dialogue. Such multiculturalism names historical oppressions, recognizes the structural causes of injustice and inequality, and is profoundly open to cultural critique, challenge and change. In order to promote such a multicultural practice, the article makes the case for a dialogical politics of deep and mutual respect in which ethno‐religious sensibilities are validated and welcomed in their rich diversity. In doing so, the article draws upon the author's empirical research on the Muslim minority in contemporary Canada. Copyright © 2008 John Wiley & Sons, Ltd.     

Mechanical restraints as positive reinforcers for aggression

Research suggests that, in some cases, mechanical restraints may function as positive reinforcers. In this study, we conducted a functional analysis of severe aggression exhibited by an individual with a history of wearing arm splints. The results of this functional analysis demonstrated that his aggression was maintained by access to the arm splints. Copyright © 2008 John Wiley & Sons, Ltd.     

Quantifying continuous exercise using the ratio of work completed to endurance limit associated with exercise-induced delayed-onset muscle soreness

This study quantified training load of various exercises using a novel method developed by the authors and based on the ratio of work completed: endurance limit, associated with exercise-induced delayed-onset muscle soreness. Exercises were also quantified using the Training Impulse method. 8 runners performed a marathon and a 60-min. run at marathon velocity, and 9 rowers performed two maximal exercises (500 m and 2000 m) on a rowing ergometer. To examine the validity of the two methods, the relationships between the training loads provided by the Training Impulse and the Authors' methods, the direct comparison of the tasks performed, and the usability of the Authors' method components in regular training were assessed. Authors' method was significantly related to Training Impulse method (r = .83, p < .05) and was higher for running (r = .94, p < .05) but none was observed for rowing. In both methods, the marathon run resulted in high training load compared with the other tasks. When compared with the 60-min. run, the training load of the 2000-m row was slightly higher for the Authors' method, but lower for Training Impulse method. In the Authors' method, the delayed-onset muscle soreness component discriminates the marathon from the other tasks whereas the ration of work completed: endurance limit differentiates the 60-min. run from the 2000-m row. The duration component of the Training Impulse method could lead to overestimation of the training load of prolonged exercises compared with high intensity exercise. The relationship between the Training Impulse and the Authors' methods for prolonged exercises, the training load provided for each task, and the components of the Authors' method supported the validity of this new tool to describe exercise-induced fatigue.     

Risk factors for addictive disorders: a discriminant analysis on 374 addicted and 513 nonpsychiatric participants

Many common risk factors have been described in addictive disorders. Little is known about factors' respective contributions to discrimination of addicted and nonaddicted participants. Two large samples were compared including 513 nonpsychiatric participants and 374 addicted participants meeting the DSM-IV criteria for eating disorders, alcohol, or substance dependence. Twenty-six risk factors were assessed by interview or self-rating scales. A discriminant analysis determined the respective weight of each risk factor. One discriminant function emerged and characterized a depressive dimension. The results suggest that the different risk factors described in addiction could be related to a depressive dimension.     

Rethinking Social Participation: The Case of Immigrants in Canada

The social engagement of Canada’s immigrants continues to be the subject of debates. Most studies indicate a lower level of involvement, particularly for recent immigrants. This article investigates the possible causes of this lower participation by analyzing data from the 1998 General Social Survey (GSS), which provides precise measures of two different types of social engagement: volunteering and social participation. Three results stand out. First, formal volunteering and broader social participation do not display the same level of variability across groups. Second, the positive family effect usually observed does not apply to immigrants: the presence of children does not significantly increase their social engagement. Third, there is a strong gender component: whereas Canadian women are more likely to participate, immigrant women are not. Other factors (age, income, education), on the other hand, do seem to apply to both groups. We suggest that these results contribute to a new explanation of immigrant social engagement: Rather than being marked by a general immigration differential, newcomers to Canada seem to be left out of very specific, gender-influenced modes of participation, specifically, those related to the family, children, and schooling.     

Bridging identities and disciplines: advances and challenges in understanding multiple identities

The chapters in this volume address the need for a better understanding of the development of intersecting identities over age and context. The chapters provide valuable insights into the development of identities, particularly group identities. They highlight common processes across identities, such as the role of contrast and comparison and the need for individual effort in identity formation. They suggest the value of studying multiple identities in interaction and using interdisciplinary approaches. However, research across identities and disciplines poses challenges for investigators. These challenges can be met and the field advanced by collaborative studies among scholars who represent different disciplines and have studied different identities.     

Experimental analysis of preschool playmate preferences as a function of smiles and sex

Differential emotions theory (DET) (The face of emotion. Appleton‐Century‐Crofts: East Norwalk, CT, 1971) posits that the smile functions in part to communicate and/or reflect social affiliation and plays an important role in children's social development. While children's positive emotion expressions have received attention from peer relations researchers in observational studies and within correlational designs, there is almost no experimental evidence for the impact of the smile. Building on existing studies, the present study examined DET predictions within an experimental design. More specifically, we examined the impact smiles have on lower‐income preschool children's nominations for preferred playmates. Both boys and girls tended to nominate unfamiliar playmates who smiled. Additionally, some evidence suggested that preference for smiling playmates seemed more critical to girls' than boys' social functioning. Unlike among boys, teachers rated girls who exhibited a greater preference for smiling playmates as higher in social competence. Copyright © 2008 John Wiley & Sons, Ltd.     

Associations between mothers' sensitivity to their infants' internal states and children's later understanding of mind and emotion

This study investigated associations between mother–infant interactions and children's subsequent understanding of mind and emotion. Mothers' tendency to comment on their infants' internal world and their general sensitivity to their infants' internal states were measured through coded play interactions at 10 months. The latter measurement included ratings on four aspects of maternal behaviour: mindful facilitation, joint attention commenting, pacing, and affect catching. In contrast to mothers' internal state language, these behaviours did not tap mothers' explicit linguistic representation of their infants' mental states. At 54 months, children's understanding of mind and emotion was measured through a range of false‐belief tasks and an emotion‐understanding task. Multivariate analysis revealed direct positive links between mothers' sensitivity to their infants' internal states and children's later understanding of mind. Copyright © 2008 John Wiley & Sons, Ltd.