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61.
What roles do CEOs play in firm performance? To address this question, the management field has accumulated a substantial amount of research over the past 3 decades built on upper echelons theory (UET), which posits that CEO characteristics manifest in firm strategic actions and, in this way, future firm performance. Hence, there is a need to systematically amass and take stock of prior empirical findings for UET testing and development. We use meta‐analytic techniques to synthesize prior UET research on the relationships among commonly studied CEO characteristics, firm strategic actions, and future firm performance. Based on 308 studies, meta‐analytic results generally support UET's predictions with a few exceptions: CEO characteristics (i.e., tenure, formal education, prior career experience, and positive self‐concept) are significantly associated with firm strategic actions, which in turn are significantly related to future firm performance. Moreover, CEO characteristics (i.e., age, tenure, formal education, and prior career experience) are positively related to future firm performance. In addition, fine‐grained analyses have revealed interesting and important relationships between specific measures of CEO characteristics (e.g., CEO prior task experience) and firm outcomes (e.g., firm strategic actions that match with CEO prior task experience). Implications for theory, future research, and practice are discussed.  相似文献   
62.

Purpose

Workplace age discrimination research is proliferating, but researchers lack a valid measure with which to capture targets’ discriminatory experiences. We developed a measure of perceived workplace age discrimination that assesses overt and covert forms of discrimination and then compared older, middle-aged, and younger workers’ experiences.

Design/Methodology

In Study 1, we developed the Workplace Age Discrimination Scale (WADS) based on older workers’ experiences using a deductive approach, a qualitative study, and two quantitative surveys. In Study 2, we validated the measure among young employees using a qualitative and two quantitative surveys. In Study 3, we tested the WADS among middle-aged workers and tested models of invariance between age groups.

Findings

Participants frequently endorsed covert discriminatory experiences, which the WADS reflects. The WADS contains convergent and discriminant validity, high reliability, and a unidimensional structure across age groups. It demonstrates criterion-related validity among older and younger workers but not middle-aged workers, given their low experiences of age discrimination. Age discrimination frequency follows a U-shaped pattern across age groups.

Implications

Researchers can use the WADS to identify long-term outcomes of age discrimination and to further compare workers’ discriminatory experiences. Practitioners and policymakers can use the measure to develop interventions to ameliorate workplace age discrimination and inform policymaking.

Originality/Value

The WADS is the first validated measure of targets’ perspectives of workplace age discrimination. Our results challenge assumptions that only older workers experience age discrimination (younger workers’ means were highest) and that age discrimination is usually overt in nature (it is often covert).
  相似文献   
63.
Crack networks and residual tensile stresses are general characteristics of electrodeposited hard chromium coatings. In this paper, crack-free hard chromium coatings with compressive stresses have been obtained by an electrodeposition process assisted by abrasive polishing. The deposited coatings had mirror-like smooth surfaces, values of hardness in the range 800–1000 HV and compressive stresses between 1000 and 1600 MPa. A model involving hydrogen disentanglement from the lattice is proposed to explain the effects of abrasive polishing on the complete elimination of cracks and the generation of a compressive stress. This explanation is discussed in terms of the variations in properties of the coating with the rotation speed of the cathode.  相似文献   
64.
初中生函数概念发展的特点   总被引:2,自引:0,他引:2  
朱文芳  林崇德 《心理科学》2000,23(5):517-521
本研究通过测验法对北京市六所中学的802名初一至初三的学生进行考察,研究了初中生函数要领的发展水平及其特点,结果表明,初中三个年级学生函数要领的发展,从总体上看,随着看级的增高呈上升的发展趋势,但年级结学生函数概念发展的影响不显著,制约 初中学生函数的概念发展水平的关键是,学生所受教育的质量,学生主要以接受教育的方式来获得函数概念。  相似文献   
65.
说普通话儿童的语音习得   总被引:30,自引:0,他引:30  
以说普通话的129名一岁半至四岁半儿童的口语资料为基础,首次确定了正常发展的普通话儿童在语音习得过程中各年龄段的音位集合、音位习得的先后顺序、及习得过程中典型的语音简化类型。研究结果可以应用到普通话儿童语音发展水平标准化测试,及对患有语音障碍的儿童的诊断。此外,研究结果还表明在普通话儿童的语音习得中同时体现了各语言共有的“普遍趋势”和普通话独有的语音特征,从而为跨语言语音习得的研究提供了新的证据,进一步发展了儿童语音习得的理论。  相似文献   
66.
汉语句子语境对单词识别的效应   总被引:6,自引:2,他引:6  
朱晓平 《心理学报》1991,24(2):35-42
本实验采用命名作业对汉语句子语境条件下的单词识别作了初步探索。结果发现:句子语境类型、语境对目标词的限制强度、目标词词频和笔画数对单词识别都产生明显影响;并且语境对单词识到效应的大小也受到语境限制强度、词频和笔画数等的影响。这些结果表明:(1)语境对单词识别的作用点会随着不同的条件而改变;(2)被试在不同的语境限制强度条件下采用了不同的利用语境信息的策略。本研究没有支持核证模型、Logogen模型和双加工理论的一些预测。有关汉语文的语境效应作用机制则有待于进一步的研究。  相似文献   
67.
艾森克人格问卷简式量表中国版(EPQ-RSC)的修订   总被引:180,自引:1,他引:180  
该文引进艾森克人格问卷简式量表(EPQ-RShortScale,EPQ-RS),首次在国内加以修订。根据来自30个省市56个地区的8637人(含汉族7725人)的样本数据,修订形成了艾森克人格问卷简式量表中国版(EPQ-RSC),共包括4个分量表,各12个项目,这一形式和EPQ-RS相同。作者并基于本研究的样本提供了EPQ-RSC的中国常模。研究表明该问卷的E、N和L三个分量表具有令人满意的信度和效度,P量表的信度和效度基本达到有关的心理测量学标准。作者最后对此问卷的信效度结果以及问卷结果反映的当代中国人人格特点进行了讨论。  相似文献   
68.
Studies indicate that there is a positive relationship between openness to experience and creativity. However, relatively little attention has been given to the mechanism of this relationship. On the basis of previous findings, we hypothesized a conceptual model and tested the mediating role of intrinsic motivation and the creative process engagement in the relationship between openness to experience and creativity. One hundred and ninety‐eight undergraduates in Malaysia participated in the study and completed an online measure of openness to new experience, creativity, intrinsic motivation, and the creative process engagement. Consistent with the hypothesis, people who scored high on openness reported high intrinsic motivation. The high motivation enhanced engagement in creativity‐related activities, which in turn, improved self‐rated creativity. The findings not only shed light on mechanisms that underlie in the openness‐creativity linkage but they also highlight the importance of intrinsic motivation and creative process engagement in the linkage. Together, the study extends the effect of personality trait on creativity and offers a new direction for future studies.  相似文献   
69.
Shyness has been found to have a negative impact on creativity. However, little attention has been given to the underlying process of the relationship between shyness and creativity. On the basis of literature, we hypothesize that shyness has an indirect impact on creativity through creative process engagement. Two studies were conducted on undergraduate students (Study 1) and working adults (Study 2) to test the hypothetical relationship. Analysis on participants self‐report showed that shyness was negatively associated with self‐reported creativity as well as creative process engagement. There was a positive relationship between creative process engagement and creativity. More importantly, mediation analysis supported that shyness was indirectly linked to creativity via creative process engagement. Specifically, shy people are found to be less involved in creativity‐relevant processes such as information searching and idea generation. The low level of creative process engagement, in turn, hinders their creativity. The findings not only lend support to the detrimental effect of shyness on creativity but also shed light on the underlying mechanism of the relationship.  相似文献   
70.
Numerous studies have found that shame increases individuals’ anger at others. However, according to recent theories about the social function of shame and anger at others, it is possible that shame controls individuals’ anger at others in specific conditions. We replicated previous findings that shame increased individuals’ anger at others’ unfairness, when others were not aware of the individual’s experience of shameful events. We also found for the first time that shame controlled or even decreased individuals’ anger at others’ unfairness, when others were aware of the individual’s experience of shameful events. The results were consistent when shame was induced by either a recall paradigm or an imagination paradigm, and in either the ultimatum game or the dictator game. This suggests that shame strategically controls individuals’ anger at others to demonstrate that they are willing to benefit others, when facing the risk of social exclusion. Our findings highlight the interpersonal function of shame and deepen the understanding of the relationship between shame and anger at others.  相似文献   
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