青少年社交网站使用对自我概念清晰性的影响:社会比较的中介作用

为探讨青少年的社交网站使用和社会比较对自我概念清晰性的影响及其作用机制,采用社交网站使用强度问卷、社会比较倾向问卷和自我概念清晰问卷对697名中学生进行调查,结果发现:(1)社交网站使用强度和社会比较倾向呈显著正相关,而社交网站使用强度和社会比较倾向都与自我概念清晰性呈显著负相关。(2)社交网站使用对自我概念清晰性不仅有显著的直接预测效应,还能通过社会比较倾向的间接作用对自我概念清晰性产生影响。     

Humanitarian intervention and historical responsibility

Some suggest that the duty of humanitarian intervention should be discharged by states that are historically responsible for the occurrence of violence. A fundamental problem with this suggestion is that historically responsible states might be ill-suited to intervene because they are unlikely to enjoy support from the local population. Cécile Fabre has suggested a way around that problem, arguing that responsible states ought to pay for humanitarian interventions even though they ought not to take part in the military operations. We claim that Fabre’s idea is subject to two concerns. First, the duty to perform might not be appropriately transferrable from the historically responsible state to another state because it would allow the primary duty bearer to escape the worst costs of intervention. Second, an intervention might be as unlikely to generate local support when a historically responsible state pays for an intervention as when it performs it. These problems are enough to cast doubt on Fabre’s idea. However, the idea is helpful because it highlights as yet neglected questions about how the financial and material burden of humanitarian intervention is to be shared.     

Eye movements reflect and shape strategies in fraction comparison

The comparison of fractions is a difficult task that can often be facilitated by separately comparing components (numerators and denominators) of the fractions—that is, by applying so-called component-based strategies. The usefulness of such strategies depends on the type of fraction pair to be compared. We investigated the temporal organization and the flexibility of strategy deployment in fraction comparison by evaluating sequences of eye movements in 20 young adults. We found that component-based strategies could account for the response times and the overall number of fixations observed for the different fraction pairs. The analysis of eye movement sequences showed that the initial eye movements in a trial were characterized by stereotypical scanning patterns indicative of an exploratory phase that served to establish the kind of fraction pair presented. Eye movements that followed this phase adapted to the particular type of fraction pair and indicated the deployment of specific comparison strategies. These results demonstrate that participants employ eye movements systematically to support strategy use in fraction comparison. Participants showed a remarkable flexibility to adapt to the most efficient strategy on a trial-by-trial basis. Our results confirm the value of eye movement measurements in the exploration of strategic adaptation in complex tasks.     

Congruency effects in dot comparison tasks: convex hull is more important than dot area

The dot comparison task, in which participants select the more numerous of two dot arrays, has become the predominant method of assessing Approximate Number System (ANS) acuity. Creation of the dot arrays requires the manipulation of visual characteristics, such as dot size and convex hull. For the task to provide a valid measure of ANS acuity, participants must ignore these characteristics and respond on the basis of number. Here, we report two experiments that explore the influence of dot area and convex hull on participants’ accuracy on dot comparison tasks. We found that individuals’ ability to ignore dot area information increases with age and display time. However, the influence of convex hull information remains stable across development and with additional time. This suggests that convex hull information is more difficult to inhibit when making judgements about numerosity and therefore it is crucial to control this when creating dot comparison tasks.     

差距知觉的泛化效应：我和你之间的差距有多大?

当知晓自己和他人的表现,即自己与他人在某方面表现上的差距已经明确时,人们对自我-他人差异的知觉准确吗?本研究发现了差距知觉的泛化效应：人们将自身的绝对表现(自己的表现与零相比的结果)泛化到对自身相对表现(自己与他人相比的结果)的判断上。在7个研究中, 被试(N = 2766)得知自己的绝对表现和相对于他人的表现,并判断自己与他人之间的差距。结果显示,绝对获益时,人们在相对获益时感知到的自我-他人差距大于相对损失时;绝对损失时,人们在相对获益时感知到的自我-他人差距小于相对损失时;当泛化难以进行时,上述效应消失。研究揭示了差距知觉的泛化效应及其联结机制。     

社会比较与亲组织不道德行为:社会比较理论的多层次视角

本研究旨在了解社会比较如何激发员工的亲组织不道德行为。社会比较可以体现在不同方面:员工追求地位体现社会比较偏好,相对领导-成员交换关系体现社会比较信息,领导-成员交换关系差异体现社会比较环境。通过对91个团队407名员工实施两阶段调查发现:相对领导-成员交换关系、追求地位、领导-成员交换关系差异促进亲组织不道德行为。追求地位和领导-成员交换关系差异正向调节相对领导-成员交换关系和亲组织不道德行为的关系。     

Examining the cross‐cultural validity of the positive affect and negative affect schedule between an Asian (Singaporean) sample and a Western (American) sample

The positive affect and negative affect schedule (PANAS) is a popular measure of positive (PA) and negative affectivity (NA). Developed and validated in Western contexts, the 20‐item scale has been frequently administered on respondents from Asian countries with the assumption of cross‐cultural measurement invariance. We examine this assumption via a rigorous multigroup confirmatory factor analysis, which allows us to assess between‐group differences in both strength of scale item‐to‐latent factor relationship (metric invariance test) and mean of each scale item (scalar invariance test), on a large sample of 1,065 respondents recruited from Singapore (Asian sample) and the United States (Western sample). We found that two items assessing PA (“excited” and “proud”) and three items assessing NA (“guilty,” “hostile,” and “ashamed”) exhibited metric noninvariance whereas 11 of the remaining metric invariant items exhibited scalar noninvariance, suggesting that the PA and NA constructs differ from what the PANAS is expected to measure for Asian respondents. Our findings serve as a cautionary note to researchers who intend to administer the PANAS in future studies as well as to researchers interpreting the results of past studies involving respondents from Asian countries.     

Different Kinds of Near-Death Experience: A Report on a Survey of Near-Death Experiences in Germany

This article provides a short summary of a representative survey on near-death experiences (NDEs) in Germany, which is the first of its kind in Europe. We tested several assumptions derived from previous research on NDEs, including the assumptions of a unified pattern of experience, the universality of the pattern, and the necessary link between NDEs and clinical death. We received replies from more than 2,000 persons, 4 percent of whom reported NDEs. The patterns of the NDEs did not seem to correspond to earlier findings: aside from being much more diverse, they also differed with respect to cultural variables, particularly the difference between religious interpretations and the differences between post-socialist East Germany and West Germany.     

Self‐evaluation and social comparison amongst adolescents with learning difficulties

Two studies are presented which examine self‐evaluation in adolescents with learning difficulties and how these adolescents strategically protect their self‐concept through the use of social comparison. Study one involved 145 adolescents with learning difficulties and the same number of non‐disabled adolescents aged between 11 to 16 years. All adolescents completed Harter's ‘Self Perception Profile for Children’ (SPPC). No significant overall differences were found between the self‐evaluations of the adolescents with learning difficulties and non‐disabled adolescents. In addition, adolescents with learning difficulties strategically devalued less favourable comparison dimensions and valued more positive comparison attributes. Study two utilized a four condition between‐groups design with a sample of 68 adolescents with learning difficulties. All participants completed the SPPC, but the availability of a social comparison group was systematically varied between conditions. The self‐evaluations made by adolescents changed significantly when the social comparison group made available was altered. The findings are discussed with regard to their theoretical implications and in terms of inclusion policies for adolescents with learning difficulties. Copyright © 2001 John Wiley & Sons, Ltd.