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911.
Douglas A. Della Toffalo 《Journal of child and family studies》2000,9(3):351-361
Research on wraparound services has been generally positive, but has failed to include data regarding treatment integrity. Without such data, conclusions drawn from such studies are weakened. This study followed 28 children and adolescents receiving wraparound services in rural central Pennsylvania. Treatment integrity was defined as the percentage of service hours prescribed vs. received, and behavioral outcomes were defined as Total Problem Behavior T Scores on the Child Behavior Checklist. Preliminary analyses failed to reveal significant differences in sample means between included subjects and those excluded due to missing data. Outcome behavior ratings were significantly improved over baseline ratings. Regression analyses, however, failed to find a significant effect for treatment integrity when used in an outcome prediction equation for Therapeutic Support Staff, Mobile Therapy services, or Behavioral Specialist wraparound services. These results suggest that adherence to prescribed treatment hours may not be related to behavioral outcomes in a wraparound service setting. 相似文献
912.
This paper discusses differences between prospect theory and cumulative prospect theory. It shows that cumulative prospect theory is not merely a formal correction of some theoretical problems in prospect theory, but it also gives different predictions. Some experiments by Lola Lopes are re-analyzed, and are demonstrated to favor cumulative prospect theory over prospect theory. It turns out that the mathematical form of cumulative prospect theory is well suited for modeling the psychological phenomenon of diminishing sensitivity. © 1997 John Wiley & Sons, Ltd. 相似文献
913.
AbstractIn social and economic interactions, people often decide differently for others, as against for themselves, under situations involving risks. This sometimes leads to conflicts or contradictions. Although previous studies have explored such contradictions, the findings have been inconsistent. To reconcile these inconsistencies, this paper investigates the role played by the different domains and probabilities in the self-other differences under risk. Two groups of participants completed a gambling task combining different domains (gain vs. loss) and probabilities (small vs. large). One group made decisions for others and the other group made decisions for themselves. The results revealed a four pattern of discrepancy: the ones who made decisions for others were less risk-seeking than those who made decisions for themselves over the small probability gains. This was reversed over the large probability gains. Conversely, the participants who made decisions for others were more risk-seeking than those who made decisions for themselves over the small probability losses. The results were reversed over the large probability losses. These results reconcile the contradictory findings of the previous studies and suggest the significant role played by contextual factors in such discrepancies. 相似文献
914.
Commonsense moral thinking holds that people have doxastic, contemplative, and expressive duties, that is, duties to or not to believe, seriously consider, and express certain ideas. This paper argues that moral and political philosophers face a high risk of violating any such duties, both because of the sensitivity and difficult of the subject matter, and because of various pernicious biases and influences philosophers face. We argue this leads to a dilemma, which we will not try to solve. Either philosophers should reduce their risk by avoiding sensitive issues where they are likely to violate such duties or, for one reason or another, philosophers are to some degree exempt from such duties when doing their work. Either horn of the dilemma, we argue, has unpalatable implications. 相似文献
915.
People are motivated to avoid losses. In the context of politics, studies consistently show that the threat of losses increases support for risky public policies more than the promise of gains. Here, we predict that this loss aversion is calibrated by individual differences related to one’s ability to accommodate resource loss, and we investigate how these individual differences moderate reactions to the threat of losses and the promise of gains. Results from large-N experiments consistently demonstrate that this moderation effect crucially depends on whether the resource loss relates to oneself or one’s group—whether the setting is personal or political. Consistent with classic assumptions, individuals with inferior abilities to cope with resource loss are more loss averse in personal settings. In political settings where group resources are threatened, effects reverse: Individuals with superior resources and a more central position within the group consistently respond more to the prospect of loss. As discussed, these findings have important implications for our understanding of why and for whom the threat of loss motivates risky personal and political choices. By consequence, the findings also shed novel light on the psychological underpinnings of recent risky political events. 相似文献
916.
917.
Power plants lose efficiency when the air preheater elements are not replaced or cleaned as they deteriorate. Replacing is more expensive than cleaning but more secure to preserve power and lifetime. How many baskets should be then replaced and how many cleaned to achieve ‘satisficing’ goals of cost, power and lifetime? We design deterministic/stochastic goal programming approaches to this problem and develop a decision case for usual preheaters. Some discrepancies in results between both approaches appear, the deterministic model advising to replace less baskets than the stochastic, which is plausible due to the risk variable. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献
918.
Robert J. Blanchard Stefano Parmigiani Christopher Bjornson Camlyn Masuda Scott M. Weiss D. Caroline Blanchard 《Aggressive behavior》1995,21(2):123-136
Swiss-Webster mice living in a visible burrow system (VBS) reacted to presentation of a live cat in the surface area of the VBS by retreat to the burrows and reductions in nondefensive behaviors such as eating and drinking. Live eat-exposed subjects remained in the burrows 14 hr or more, while subjects exposed to a toy (plush) cat prior to live cat exposure reemerged almost immediately and made many contacts with the toy cat. However, subjects exposed first to the cat and later to a toy cat showed intermediate surface reemergence times and cat contacts during toy cat tests, indicating strong sensitization effects of prior live cat exposure. Previous studies indicated that rats in this situation show retreat to the burrows, surface avoidance, and reduction in nondefensive behaviors. The mouse pattern was similar, with the notable exception that in the first 5min block after cat presentation, mice rapidly alternated retreat to the burrow chambers with reappearance in the tunnel segment near the surface, to scan the surface visually and sniff. Movement during this time block involved a stretch attend posture characteristic also of risk assessment activities in rats. Such visual and olfactory inspection of the cat is not seen in rats in the VBS. This difference may be related to the finding that rats, but not mice, emit ultrasonic “alarm cries” during and after cat exposure. © 1995 Wiley-Liss, Inc. 相似文献
919.
Anne Schlottmann 《决策行为杂志》2000,13(1):77-89
Violations of utility are often attributed to people's differential reactions to risk versus certainty or uncertainty, or more generally to the way that people perceive outcomes and consequences. However, a core feature of utility is additivity, and violations may also occur because of averaging effects. Averaging is pervasive in intuitive riskless judgement throughout many domains, as shown with Anderson's Information Integration approach. The present study extends these findings to judgement under risk. Five‐ to 10‐year old children showed a disordinal violation of utility because they averaged the part worths of duplex gambles rather than add them, as adults do, and as normatively prescribed. Thus adults realized that two prizes are better than one, but children preferred a high chance to win one prize to the same gamble plus an additional small chance to win a second prize. This result suggests that an additive operator may not be a natural component of the intuitive psychological concept of expected value that emerges in childhood. The implications of a developmental perspective for the study of judgement and decision are discussed. Copyright © 2000 John Wiley & Sons, Ltd. 相似文献
920.
Daniel Paquette Christine Bolt Genevive Turcotte Diane Dubeau Camil Bouchard 《Infant and child development》2000,9(4):213-230
Our goal was to identify different types of parenting based on self‐report measures of fathers' involvement and parental attitudes. The present investigation studied 468 two‐parent, French Canadian families with at least one child between 0 and 6 years of age, living in a disadvantaged environment. The study, conducted on a sample of fathers, revealed the presence of the three basic types of parenting identified by Baumrind (authoritarian, authoritative and permissive), and also of a new type of parenting (stimulative parenting). The fathers in this latter group provide more emotional support to children and are more stimulating, as is evidenced by the greater psychological presence of children in the father's cognitions and by the fact that they more frequently introduce their children to new activities. These fathers are characterized by more secure social relationships. The father's parental stress level was found to be the most important variable discriminating between different types of fathering. Authoritarian and authoritative fathers are more at risk of maltreating their children because their more favourable attitude towards the use of physical punishment is combined with greater parental stress, less parental involvement of mothers, and a larger number of children in the home. Authoritarian fathers are even more at risk of maltreating their children because of more difficult family socioeconomic conditions, particularly lower levels of maternal education and income. Copyright © 2000 John Wiley & Sons, Ltd. 相似文献