Core Job Characteristic and Uncertainty Avoidance: Into the Black Box of Transformational Leadership Effect on Creativity

Drawing upon the job characteristic model and the “management of meaning” perspective, this study examines the process and conditions through which transformational leadership fosters employee creativity. Our results reveal that the effect of transformational leadership on creativity is mediated by employees’ perceptions of core job characteristics (variety, identity, significance, autonomy, feedback). This mediation effect is further moderated by employees’ uncertainty avoidance orientation. Specifically, transformational leaders foster creativity through followers’ perceptions of core job characteristics only among employees low on uncertainty avoidance. The association between enhanced job characteristics and creativity is more positive for employees with low uncertainty avoidance orientation than those with high uncertainty avoidance orientation. Implications and future research directions are discussed.     

Revisiting predictive bias of cognitive ability tests against Hispanic American job applicants

Previous studies have concluded that cognitive ability tests are not predictively biased against Hispanic American job applicants because test scores generally overpredict, rather than underpredict, their job performance. However, we highlight two important shortcomings of these past studies and use meta-analytic and computation modeling techniques to address these two shortcomings. In Study 1, an updated meta-analysis of the Hispanic–White mean difference (d-value) on job performance was carried out. In Study 2, computation modeling was used to correct the Study 1 d-values for indirect range restriction and combine them with other meta-analytic parameters relevant to predictive bias to determine how often cognitive ability test scores underpredict Hispanic applicants’ job performance. Hispanic applicants’ job performance was underpredicted by a small to moderate amount in most conditions of the computation model. In contrast to previous studies, this suggests cognitive ability tests can be expected to exhibit predictive bias against Hispanic applicants much of the time. However, some conditions did not exhibit underprediction, highlighting that predictive bias depends on various selection system parameters, such as the criterion-related validity of cognitive ability tests and other predictors used in selection. Regardless, our results challenge “lack of predictive bias” as a rationale for supporting test use.     

Career maturity and state anxiety of Taiwanese college student athletes given cognitive career-oriented group counseling

In this study, the extent to which a cognitive career-based group counseling program might promote career maturity and decrease state anxiety among student athletes was investigated at two business colleges in Taiwan. 80 male and female participant volunteers, averaging about 19 years of age, were divided into control and treatment groups in each college. The treated group was given instruction. Analysis indicates that treated students exhibited overall lower mean state anxiety than the nontreated group. However, no significant treatment group differences were detected among participants' career maturity scores. The results raise important questions regarding the ways in which institutions of higher education seek benefit from student athletes' physical talents, e.g., increased name recognition, yet often do not prepare them for their careers postgraduation.     

廖燕哲学思想举要

文章从"性无善恶可分"的人性观、"以天地为心胸"的修养观、揭示专制愚民政策的政治哲学观三个方面,揭示廖燕卓尔不群的哲学体悟,指出廖燕在岭南学术史有其不可或缺的地位。     

肿瘤疫苗治疗肿瘤的前景

肿瘤疫苗的发展已经历了一个多世纪,20世纪50年代,人们开始了自体肿瘤疫苗的研究.使肿瘤疫苗(主动性免疫治疗)成为继手术、放疗、化疗之后的肿瘤治疗方法.肿瘤疫苗作为主动特异性免疫治疗,在临床中起到越来越重要的作用,人们开始尝试利用多种方法制备肿瘤疫苗并利用其促进机体免疫应答,从整体细胞,分子水平调控机体对肿瘤的免疫.目前肿瘤疫苗的研制已取得很大进展,给人类战胜肿瘤提供很大希望。     

防范儿童意外伤害的人文策略

意外伤害是危害儿童健康的主要因素,虽然其发生具有一定的随机性和不可预料性,但仍然是可防、可控的;在掌握了儿童意外伤害的流行特征之后,我们可以采取一系列具有人文策略的干预措施,来增加儿童及家长的依从性,从而降低致残率和致死率;有关儿童意外伤害的研究工作还存在一些问题.     

汉语普通话声调加工的右耳优势及其机理：一项双耳分听的研究

采用双耳分听的任务探讨了汉语普通话声调加工的右耳优势问题,并引进反应手的因素,探讨了汉语声调加工的右耳优势的机制。结果表明,汉语母语被试对普通话声调的加工存在右耳、左脑优势,但这种优势是相对的,右脑也具备加工声调信息的能力,结果支持了直接通达模型。     

东西方面孔异族效应机理的电生理学证据

采取事件相关电位方法研究东西方面孔记忆编码的差异（DM效应）,从而阐明异族效应的神经机制。14名被试学习和再认东西方面孔照片的实验结果表明,无论记住与否,西方面孔产生的早期成分（潜伏期70~220ms）在头皮额部有一个比东方面孔更为正向的变化,表明在此阶段更多的资源分配于异族面孔,支持异族效应产生的特征选择假说。无论东方面孔还是西方面孔,记住与未记住相比较,则在额部和顶部产生潜伏期在晚期正成分（LPC）范围的正走向变化,但西方面孔在240~320ms潜伏期范围内,DM效应较小。另外,东方面孔在枕部诱发出一个明显的负波N260,而西方面孔产生的N260很小甚至没有,反映了大脑对不同种族面孔的编码机制有所不同,因而可能被称为“种族特异波”     

Culture and group perception: dispositional and stereotypic inferences about novel and national groups

In 3 studies, the authors tested the hypothesis that Chinese participants would view social groups as more entitative than would Americans and, as a result, would be more likely to infer personality traits on the basis of group membership--that is, to stereotype. In Study 1, Chinese participants made stronger stereotypic trait inferences than Americans did on the basis of a target's membership in a fictitious group. Studies 2 and 3 showed that Chinese participants perceived diverse groups as more entitative and attributed more internally consistent dispositions to groups and their members. Guided by culturally based lay theories about the entitative nature of groups, Chinese participants may stereotype more readily than do Americans when group membership is available as a source of dispositional inference.     

情绪神经回路的可塑性

从两个方面介绍了近年来关于情绪神经回路可塑性的研究进展：（1）情绪神经回路中各主要脑区（包括前额叶、杏仁核等）的可塑性及其相互影响;（2）情绪神经回路可塑性的影响因素,包括情绪学习、早期环境和经历以及抚养者的情绪状态等。文章最后还对情绪神经回路可塑性的研究方法及未来的研究方向进行了探讨