原发性三叉神经痛两种治疗方法的比较

原发性三叉神经痛的治疗方法以神经毁损术最为常用。通过对经皮射频热凝毁损术和阿霉素化学毁损术的疗效、安全性、复发率、并发症及费用等方面的比较,揭示两种方法的利弊。用比较治疗学的理念及方法来指导三叉神经痛治疗的临床决策,以期能在目前条件下提高患者的治疗效果、降低医疗费用及提高生活质量。     

美国、英国和加拿大健康战略的比较分析

美国、英国和加拿大三国均为发达国家,也是世界上最早开展健康战略研究的几个国家。通过比较美国、英国和加拿大三国的基本卫生状况、健康战略的内容和发展过程,在此基础上,分析了三个国家在制定和实施健康战略过程中的做法与经验,为制定和完善“健康中国2020”战略提出了相关的建议。     

Peers and Performance: How In-Group and Out-Group Comparisons Moderate Stereotype Threat Effects

The present study examined how exposure to the performance of in-group and out-group members can both exacerbate and minimize the negative effects of stereotype threat. Female participants learned that they would be taking a math test that was either diagnostic or nondiagnostic of their math ability. Prior to taking the test, participants interacted with either an in-group peer (a female college student) or an out-group peer (a male college student) who had just taken the test, and learned that the student had either performed well or poorly on the test. Exposure to either an in-group or an out-group peer whose performance was consistent with the negative stereotype (a poor-performing female or a strong-performing male) exacerbated stereotype threat effects. In contrast, exposure to an in-group or an out-group peer whose performance challenged the negative stereotype (a strong-performing female or a poor-performing male) eliminated stereotype threat effects. These findings demonstrate that people can look to both in-group and out-group peers as sources of inspiration in the context of a negative stereotype.

Assimilation and contrast to group primes: The moderating role of ingroup identification

This research examined the conditions under which behavioral contrast would be observed in relation to ingroup and outgroup primes. The authors tested the hypothesis that differing levels of commitment to the ingroup would predict diverging behavioral responses to outgroup but not ingroup primes. Across two studies, featuring both age and gender groups, we found that ingroup identification predicted responses to outgroup primes with higher identifiers showing an increased tendency to contrast, that is, behave less like the outgroup, and more like the ingroup. Ingroup identification did not predict responses to ingroup primes. The implications of these findings for social comparison and social identity theories are discussed.     

The generalized Logit-Linear Item Response Model for Binary-Designed Items

This paper introduces the generalized logit-linear item response model (GLLIRM), which represents the item-solving process as a series of dichotomous operations or steps. The GLLIRM assumes that the probability function of the item response is a logistic function of a linear composite of basic parameters which describe the operations, and the coefficients depend on three design matrices X, Y and Z. The GLLIRM provides a tool for testing hypotheses on the item-solving process and generalizes existing models. An empirical application is included, in which the model is applied to evaluate sources of difficulty and pairwise item interactions in a logical analysis test. This research was supported by the Comunidad de Madrid grant CCG06-UAM/ESP-0043.     

初中生的社会比较对认知与情感信任的影响

本研究旨在探讨不同友谊状态下,初中生的社会比较对认知与情感信任的影响,及两种信任在社会比较与亲密度变化关系中的中介作用。有效被试为522名(M=12.87岁, SD=0.67),开学初让被试提名一位最亲密朋友,期中考试后让其比较与该好友的成绩排名并评价对好友的认知与情感信任水平,随后重新评价该好友的亲密度。结果表明:在亲密朋友(第二次依旧为最亲密的朋友)中,向下比较的情感信任高于向上比较,社会比较不影响认知信任;在普通朋友(第二次亲密度降低的朋友)中,向上比较的认知和情感信任均高于向下比较;社会比较只通过认知信任影响亲密度变化(完全中介),即相比于向下比较,向上比较时的认知信任水平较高,从而更有利于维持友谊的亲密性。     

创业失败与再创业意向的作用机制

近年来, 我国政府对创业支持力度不断加强, 创业活动日益活跃, 但失败率却居高不下。如何让创业者在遭遇失败后仍能保持再创业的意向是当前亟待解决的现实问题。拟综合采取横向问卷调查、纵向时间对比以及情景模拟实验的方法, 一方面探讨成就目标导向和社会比较在创业失败和创业失败学习之间的有中介的调节作用; 另一方面分析创业失败学习、创业自我效能感在创业失败和再创业意向之间的链式多重中介作用机制, 寻求由创业失败到再创业意向的不同路径, 这种探讨具有理论创新价值。依据实证研究的结论在实践中指导创业者通过上行比较, 锁定学习目标, 激发再创业意向; 通过提高自我怜悯水平, 使创业者摆脱消极情绪的困扰, 激发掌握性学习动机, 确立再创业的意向, 对于创业者具有重要指导意义。社会比较和自我怜悯的干预研究具有鲜明的中国文化特色。     

The Effect of Education on Nationalism and Ethnic Exclusionism: An International Comparison

In most studies on ethnic attitudes, a rather strong negative relationship has been found between educational attainment and positive ingroup attitudes (or negative outgroup attitudes). However, it is not well known to what extent this educational effect varies across different national contexts. This study investigated the effect of education on different dimensions of nationalism and ethnic exclusionism with the use of 1995 survey data gathered in 22 countries. Notions from socialization theory were used to test whether the educational effect varies according to the length of liberal-democratic tradition and the degree of religious heterogeneity within a country. Results indicate that educational attainment is strongly related to ethnic exclusionism as well as chauvinism, but not to patriotism. Moreover, the effect of education on ethnic exclusionism is smaller in recently established democracies. The hypothesis regarding stronger educational effects in societies with more religious heterogeneity was not supported.     

Order effects in sequentially judged options due to the direction of comparison

Many real-world judgment tasks present options in sequence. Typically, these judgments are made step-by-step, immediately after considering each option, or end-of-sequence, after all have been seen. We report similar order effects in both procedures, due to direction of comparison. It appears that judges form an impression of each new option by comparing it to those that preceded it. Using that option’s features as a “checklist,” more weight is given to unique ones than to ones shared with previous options. This unidirectional comparison process produces increasing ratings in options with unique positive features, and decreasing ratings when options have unique negative features. By manipulating the barriers to making multiple comparisons, we show that the direction-of-comparison effect is not limited to judgment tasks with sequential presentation. Even simultaneously presented options may show order effects, if they are judged one at a time—in sequence. Possible explanations and implications are discussed.     

Stereotype Lift

When a negative stereotype impugns the ability or worth of an outgroup, people may experience stereotype lift—a performance boost that occurs when downward comparisons are made with a denigrated outgroup. In a meta-analytic review, members of non-stereotyped groups were found to perform better when a negative stereotype about an outgroup was linked to an intellectual test than when it was not (d=.24,p<.0001). Notably, people appear to link negative stereotypes to evaluative tests more or less automatically. Simply presenting a test as diagnostic of ability was thus sufficient to induce stereotype lift. Only when negative stereotypes were explicitly invalidated or rendered irrelevant to the test did the lift effect disappear.