The often overlooked issue of statistical power: This and other issues regarding assessing importance weighting in quality of life measures

In the area of quality of life research, researchers may ask respondents to rate importance as well as satisfaction of various life domains (such as job and health) and use importance ratings as weights to calculate overall, or global, life satisfaction. The practice of giving more important domains more weight, known as importance weighting, has not been without controversy. Several previous studies assessed importance weighting using the analytical approach of moderated regression. This study discusses major issues related to how importance weighting has been assessed. Specifically, this study highlights that studies on importance weighting without considering statistical power are prone to type II error, i.e., failing to reject the null hypothesis of no significant weighting effect when the null hypothesis is actually false. The sample size required for adequate statistical power to detect importance weighting functions appeared larger than most previous studies could offer.     

论《世说新语·贤媛》之"贤"

通过分析《世说新语.贤媛》中女性的特征,指出了“贤”之一字不同于封建礼教所要求的新的内涵,并阐述了产生这种变化的原因,以及这种新的审美理想的意义。     

第二次世界大战对世界格局产生的影响

第二次世界大战以雅尔塔体系为基础形成了以美苏两大国为首的世界政治格局,对战后世界政治、经济和国际关系产生了深刻影响。随着两极格局的终结,世界又朝着多极化趋势发展。     

试析一战初期英国的中东政策——基于《德邦森报告书》的考察

一战期间,英国发表了《德邦森报告书》,对中东形势和英国的对策作出了具体的分析。报告书一方面秉承英国的传统政策,主张保存土耳其,另一方面又具体划分了列强在中东的利益范围,客观上为日后列强瓜分土耳其扫除了障碍。     

世界贸易组织争端解决机制评析

从世界贸易组织（WTO）成立后的实践来看，它的争端解决机制为各成员方解决贸易争端、为帮助世界贸易秩序的稳定和发展发挥了重要作用。但是从对WTO争端解决机制的几个方面的具体的分析、评价中可以得知它也并非尽善尽美，还有待进一步的发展和完善。     

美苏在德国赔偿问题上的矛盾与德国的分裂

德国在二战后被分裂成两个国家,就其外部因素来讲,是由于以美苏为首的大国合作政策在战后逐渐走向对抗并导致冷战的产物,是外部力量施加于德国的结果,而在走向对抗的过程中,美苏在德国赔偿问题上的冲突,是导致德国分裂的一个重要原因。     

第十届世界杯男排赛中、巴、意发球效果比较研究

根据第十届世界杯男排赛中国男排和冠亚军(巴西、意大利)的两场比赛录像,对三支球队的发球技术进行统计与测量分析。结果显示:中国男排在发球的有效率上与巴、意两队存在显著性差异,发球速度的各项指标均低于巴、意两队。提出了建立新的"一攻"观念、制定特殊政策鼓励大力跳发球等观点。     

考虑环境因素下的上海世博会经济影响评价

通过对环境生态成本的分析，根据上海市2002年的投入产出表，建立了基于资源一经济一环境绿色投入产出表的绿色GDP核算方法。利用这一方法对2010年上海世博会对上海经济一环境影响进行分析研究，结果反映了上海世博会对上海的综合影响。     

美国对华贸易的政治经济学分析

美国对华贸易虽以保持稳定的经贸关系为基础，但迫于国际政治需要和国内的集团利益，还存在许多不确定性。因此，中国应当从宏观上对中美经贸关系拓展战略性思维，加强开展商务外交，构建和谐的国际经贸新秩序；从微观上，完善政府的商务职能，加强企业国际化能力，充分发挥行业协会的作用，多方面促使中美贸易朝正常化方向发展。     

Consumer trust in B2C e-Commerce and the importance of social presence: experiments in e-Products and e-Services

Reducing social uncertainty—understanding, predicting, and controlling the behavior of other people—is a central motivating force of human behavior. When rules and customs are not sufficient, people rely on trust and familiarity as primary mechanisms to reduce social uncertainty. The relative paucity of regulations and customs on the Internet makes consumer familiarity and trust especially important in the case of e-Commerce. Yet the lack of an interpersonal exchange and the one-time nature of the typical business transaction on the Internet make this kind of consumer trust unique, because trust relates to other people and is nourished through interactions with them.This study validates a four-dimensional scale of trust in the context of e-Products and revalidates it in the context of e-Services. The study then shows the influence of social presence on these dimensions of this trust, especially benevolence, and its ultimate contribution to online purchase intentions.