Precriterion stationarity in markovian learning models

Two forms of stationarity prior to criterion in absorbing Markov chains are examined. Both forms require that the probability of a particular response on a particular trial before absorption be independent of trial number. The stronger of these forms holds that this is true independent of starting state; the weaker, only for a specified set of starting probabilities. Simple, necessary and sufficient conditions for both forms are developed and applied to several examples.The author would like to thank Charles Lewis for his help in developing this article, and Peter Polson of the University of Colorado and an anonymous referee for several fruitful suggestions made in reviews of earlier versions.     

人际关系适应特征的情境评价方法研究

本研究运用情境评价法对人际关系适应特征进行了实验研究 ,结果表明 :1以 Schutz提出的人际关系六因素为评价标准 ,采用情境评价法比问卷形式能更有效地揭示人际适应特征 ;2在情境评价中 ,以合作为主的情境设置比以竞争为主的情境设置更利于反映出人际适应特征 ;3情境评价采用定向、组织、交流和问题解决等阶段的过程设计符合情境评价的实际进程 ,有助于分阶段展开被试的行为特征 ,提高情境评价的可控性和准确性。     

主动性人格与工作绩效：个体-组织匹配的调节作用

本研究的目的：考察主动性人格在中国企业内对工作绩效的预测性及个体-组织匹配在其中的调节作用。方法：研究以三家中国本土企业的253名员工为被试,使用修订过的主动性人格量表。结果：（1）除了大五人格和社会赞许性之外,主动性人格还可以解释工作绩效8．5％的方差变异;（2）整体分析时只有团队导向因素显著,单独分析时高新独资企业中注重细节因素、团队导向因素和结果导向因素有显著的调节作用;民营企业中尊重员工因素有显著的调节作用;国有企业中革新性因素和团队导向因素有显著的调节作用。结论：主动性人格可以有效地预测工作绩效,个体-组织匹配则根据不同的企业组织,不同的因素在主动性人格和工作绩效的关系中起调节作用。关于本研究的贡献与不足以及未来的研究方向都有所讨论。     

群体绩效和团队效能研究的新进展

近几年来 ,在群体和团队方面的研究比较活跃 ,并取得了不少新的进展。本文在近几年的国内外文献的基础上 ,着重讨论几个与群体绩效有关的长期存在的问题 ,主要包括群体构成、凝聚力、激励、领导、群体目标等因素。同时探讨团队与组织之间的内在联系。然后 ,讨论团队效能研究中的几个开放性问题 ,以及将来研究的新动向新趋势。最后 ,对影响团队效能的几个关键的调节因素作一简要的讨论。     

Intraindividual variability in driving simulator parameters of healthy drivers of different ages

Intraindividual variability is a fundamental behavioural characteristic of aging but has been examined to a very limited extent in driving. This study investigated intraindividual variability in driving simulator measures in healthy drivers of different ages using the coefficient of variation (COV) as a variability measure. Participants were healthy volunteers who were regular drivers, who were divided into a “young” group, a “middle-aged” group, and an “old” group. They drove in two environments (rural, 72 drivers; urban, 60 drivers), under conditions of moderate and high traffic load, without and with distraction (conversation). Significant differences in COV were observed in the rural condition for headway distance and lateral position as a function of traffic load, with high traffic (without and with distraction) resulting in increased COV of headway and decreased COV of lateral position. Significant differences in COV were observed in the urban condition for headway distance only, with high traffic (without and with distraction) resulting in increased COV of headway. No age effects were found for any of the driving conditions. The results indicate that traffic load affected headway distance and lateral position in opposite directions in all three age groups: high traffic resulted in increased variability of headway in both rural and urban conditions but in decreased variability of lateral position in the rural conditions compared to moderate traffic irrespective of distraction. The study indicates that driving conditions affect the intraindividual variability of driving measures in selective ways, which may be linked to the extent of automatization of the driving variables and to adaptive changes to traffic condition challenges.     

Mindfulness-based programs,perceived stress and well-being at work: The preferential use of informal practices

IntroductionOrganizations which engage in the promotion of well-being are likely to prevent mental health issues in workers. Mindfulness-based interventions offer new perspectives to increase well-being at work. However, the issue of finding time and framework to practice at work is important. Recent studies suggested that informal mindfulness practices could be useful in reducing stress and increasing well-being.ObjectiveThe present study aimed to study how the duration and type of mindfulness practice may enhance employees’ well-being.MethodA multi-method (qualitative and quantitative), controlled pre/post design study (N = 72) was conducted to collect data about the type of preferred mindfulness practices used during an 8-week MBSR program, and to analyse the effects of the program on employees’ well-being. Number of sessions, number of days of practice, and practice time per day were used as moderators.ResultsParticipants reported a preferential use of brief, informal practices. Employees who followed the MBSR program reported higher levels of well-being compared to the wait-list control group (η² = .194). Those who preferentially used informal practices showed the same increase in well-being as those who reported preferentially using formal practices. The number of days of practice did not moderate the effect of the intervention on well-being.ConclusionBrief and informal mindfulness practices appear to be a promising means of increasing well-being in everyday life. Further research is needed to compare an 8-week mainly informal mindfulness-based program to a classical MBSR program to identify whether informal practices may be sufficient to increasing employees’ well-being.     

Olympic coaching excellence: A quantitative study of psychological aspects of Olympic swimming coaches

ObjectivesResearchers investigating the psychological aspects of Olympic coaching have studied coaches as a homogenous group, and the effect of coaches' psychological characteristics on performance-related outcomes remains unclear. The objective of this research, therefore, was to examine whether psychological factors discriminate between world-leading (i.e., Olympic gold medal winning) and world-class (i.e., Olympic non-gold medal winning) coaches.MethodSelf-reported psychometric questionnaires were completed by 36 Olympic coaches who had collectively coached 169 swimmers to win 352 Olympic medals, of which 155 were gold medals. The questionnaires assessed 12 variables within the Big Five personality traits, the dark triad, and emotional intelligence, and the data was analyzed using three one-way multivariate analysis of variance and follow-up univariate F-tests.ResultsThe results showed that the 21 world-leading coaches were significantly more agreeable, had greater perception of emotion, were better at managing their own emotion, and were less Machiavellian and narcissistic than the 15 world-class coaches. The groups of coaches showed no differences in levels of conscientiousness, openness to experience, extraversion, neuroticism, psychopathy, managing other emotion, or utilization of emotion.ConclusionsPsychological factors discriminate between world-leading and world-class coaches. The implications of these differences are discussed for psychology researchers and practitioners operating in Olympic sport.     

Atmospheres of street performance in Taipei: Affect and emotion as dynamic,simultaneous, more-than-representational experiences

Studies of street performance have highlighted its potential for creating vibrant and inclusive urban places, yet have largely neglected its atmospheric, affectual and emotional dimensions. Building on a growing body of work on atmospheres and dynamics of affect and emotion, I examine the formation of atmospheres by street performances in Taipei and its affectual and emotional resonance on space and people. I used an experimental more-than-representational methodology, including implementing a live survey questionnaire through the audience's smartphones during a performance. An atmosphere of street performance is generated through the lively interactions between the street performer, members of the audience, performance objects and the wider urban environment. Performance objects and the urban streetscape are vitalised as part of street performance, and have excessive potential in producing atmospheres. The spatio-temporal dimension of performance atmosphere is significant in generating memories and creating a therapeutic atmospheric space, experienced affectually and emotionally. I suggest that it would be helpful to see atmosphere and its affectual and emotional impact as dynamic, simultaneous experiences that people encounter as they are enmeshed within an atmosphere, such as in more-than-individual experiences or unexpected events. Within a changing atmosphere, there are multiple layers of affective and emotional outcomes, whether felt and emerging individually, and/or felt and emerging collectively.     

One Roof,Three Generations: Grandparental Co-residence and Child Outcomes in China

This study examined the association between grandparental co-residence and child academic and behavioral outcomes using a sample from Shanghai, China (n = 1,763), and was built on two theoretical perspectives: intergenerational solidarity theory and the contextual model of family stress. These models integrate the impact of residential and relational proximity to grandparents on child well-being and underscore the importance of family context. This study also explored the moderating effects of family resources using proxies that prior theoretical and empirical studies have found to be important to such associations: family income, parental education, hukou status, and subjective social status. Results indicated that among families without co-residing grandparents, rural and low-income parents reported their children to have more externalizing behavioral issues than their respective urban and non-low-income counterparts. In addition, children who resided in poorly resourced families (i.e., low family income, low parental education, low subjective social status, or rural hukou status) tended to benefit from living with grandparents compared to their well-resourced counterparts in terms of lower externalizing and internalizing behaviors reported by teachers. These results do not negate the potential beneficial effects of living with grandparents for children in well-resourced environments. Implications for practice and policy, as well as future research directions, are discussed.     

The Performance Diagnostic Checklist-Human Services: A brief review

The Performance Diagnostic Checklist-Human Services (PDC-HS) is an informant-based tool designed to identify the variables contributing to poor employee performance in human service settings, such as clinics, schools, and residential facilities. Upon completion of the tool, an intervention indicated by PDC-HS results is used to improve employee performance. To date, the PDC-HS has been used in a number of studies. This review describes the existing research on the PDC-HS and provides suggestions for future research.