A k-sample significance test for independent alpha coefficients

The earlier two-sample procedure of Feldt [1969] for comparing independent alpha reliability coefficients is extended to the case ofK 2 independent samples. Details of a normalization of the statistic under consideration are presented, leading to computational procedures for the overallK-group significance test and accompanying multiple comparisons. Results based on computer simulation methods are presented, demonstrating that the procedures control Type I error adequately. The results of a power comparison of the case ofK=2 with Feldt's [1969]F test are also presented. The differences in power were negligible. Some final observations, along with suggestions for further research, are noted.The authors gratefully acknowledge the assistance of Michael E. Masson, in the computations performed, and of Leonard S. Feldt, in suggesting the data generation procedures used in the study. In addition, the authors thank James Zidek and the Institute of Applied Mathematics and Statistics, University of British Columbia, for advice concerning some of the theoretical development.     

Convergence properties of an iterative procedure of ipsatizing and standardizing a data matrix,with applications to parafac/candecomp preprocessing

Centering a matrix row-wise and rescaling it column-wise to a unit sum of squares requires an iterative procedure. It is shown that this procedure converges to a stable solution. This solution need not be centered row-wise if the limiting point of the interations is a matrix of rank one. The results of the present paper bear directly on several types of preprocessing methods in Parafac/Candecomp.     

社会比较中的认知偏差探析：“优于常人”效应和“差于常人”效应

近几年来,在社会心理学的研究中社会比较中的认知偏差现象越来越多的受到研究者的关注。该文主要介绍了社会比较中的认知偏差现象：“优于常人”效应和“差于常人”效应。并对其理论依据、测量方法以及研究的理论意义分别进行了介绍。最后,在对以往研究回顾的基础上,提出了对今后研究的展望。     

What’s good for me depends on what I see in you: Intimacy avoidance and resources derived from close others

Past research has demonstrated that comfort with intimacy differentially affects the extent to which a person assimilates/contrasts to a close other. Specifically, individuals comfortable with intimacy benefit most from assimilating to those who embody positive aspects, whereas individuals uncomfortable with intimacy benefit most from contrasting to those who embody a mix of positive and negative aspects. Using a multi-method approach, the current research provides evidence suggesting that both those who are positively regarded and those who engender mixed feelings have the potential to benefit the perceiver differentially as a function of the types of traits that are most salient at the time. In Study 1, consistent with predictions, high-avoidant individuals contrasted to the salient traits of a romantic partner and performed better on an intelligence test after thinking about their partner’s unintelligent compared to intelligent traits, whereas low-avoidant individuals assimilated. In Study 2, high-avoidant individuals contrasted to friends’ traits and exhibited more positive cardiovascular responses (i.e., greater challenge) while talking about friends’ negative traits and more negative responses (i.e., greater threat) while talking about friends’ positive traits. Together, these findings suggest that there are situations during which low- and high-avoidant individuals differentially benefit from highly regarded close others.     

自我效能感、社会比较与成就目标的关系研究

目的采用学业自我效能感问卷、社会比较量表和成就目标定向量表,选取湘潭地区中学生,共计403名有效被试为对象进行研究,探讨中学生自我效能感、社会比较与成就目标的关系。结果发现,不同性别、年级中学生在成就目标、自我效能感和社会比较上的存在显著性差异;中学生自我效能感、成就目标和社会比较有显著相关;自我效能感与社会比较对成就目标有显著预测作用。     

社会比较研究的现状与发展趋势

社会比较是人类普遍存在的一种社会现象,在西方关于社会比较的研究已经成为心理学界的一个重要课题。该文从社会比较的概念、类型、动机和策略等几个方面,回顾了国外近50年来研究者关于社会比较的研究脉络;最后,在回顾近几年研究的基础上对社会比较的未来研究趋势进行了展望。     

中美教学医院门诊病历管理对比研究

通过文献检索、走访调研并结合笔者对美国教学医院门诊病历管理的实地考察,本文对中美两国教学医院人员对门诊病历管理的认识理念、门诊病历管理的方式、病历的规范设计以及门诊病历的质量控制等方面进行了对比研究。显示我国教学医院在门诊病历管理方面与发达国家存在着差距。从提高临床医疗和医学教学质量、有利于患者疾病的诊治和培养当代优秀...     

Race for Power in Public Good Games with Unequal,Unstable Punishment Power

Decentralized punishment can maintain contributions to a public good at a high level. This positive effect holds even for situations involving inequality in punishment power, meaning that the relative costs for punishment differ between persons. We extend this line of research by examining the additional influence of instability of and thus potential competition for punishment power in public good experiments. As in previous research, inequality is operationalized by assigning the role of a ‘strong player’ to one group member, who can punish others at a reduced cost compared to other players. Instability is operationalized by the fact that the role assignment can change across rounds and is contingent on behavior in previous rounds. Three experiments show that under unequal, unstable (punishment‐) power, individuals behave more competitively and engage in a race for power resulting in detrimental effects for the group. Specifically, we find that (i) unstable power goes along with a disproportionate use of punishment; (ii) not inequality by itself but rather the combination of instability and inequality causes this effect; and (iii) this excessive use of punishment is found not only when the role of the strong player is assigned to individuals who previously behaved rather selfishly but also when prosocial behavior leads to the top, speaking for a generalizability of our findings. Implications for organizational settings are discussed. Copyright © 2016 John Wiley & Sons, Ltd.     

Cross‐cultural comparison of seven morningness and sleep–wake measures from Germany,India and Slovakia

Morningness–eveningness or circadian typology can be viewed as an interesting aspect of individual differences. Morningness–eveningness is a preference for a given time of day for physical or mental performance, but also reflects aspects of affect. Here, we used seven different measures to assess differences in morningness–eveningness between Germany, Slovakia and India. The hypothesis was that Indians should be earliest chronotypes, followed by Slovakia and then Germany, because of higher temperatures in India, and the fact that Slovakia is located farther east compared to Germany. We applied the Composite Scale of Morningness (CSM), the Circadian Energy Scale (CIRENS), the CAEN Chronotype Questionnaire (CCQ), and habitual sleep–wake variables to calculate sleep duration, midpoint of sleep and social jetlag. Sample sizes were N = 300 (Germany), N = 482 (Slovakia) and N = 409 (India). Country had the strongest influence on morningness–eveningness. Germans were latest chronotypes and differed in all seven measures from Indians but differed from Slovakians only in the energy level at the evening and midpoint of sleep. Slovakians and Indians differed in all measures but the energy level (CIRENS). Women scored higher on the CSM, lower on CIRENS, lower on the morningness–eveningness (ME) scale, but higher on distinctness (DI) scale. Women slept longer and had an earlier midpoint of sleep.