信息性与控制性:工作压力源的性质研究

本研究在自我决定理论(self-determination theory,SDT)的框架指导下,对264名企业员工所感受的压力源的性质进行了分析.结果发现,根据作用方式或者个体评价方式的不同,同一个压力源可以再分为信息性或控制性;信息性压力源所产生的压力感受显著地低于控制性的压力源所产生的压力感受;人际与角色压力、工作特征压力、组织结构和氛围压力均可以再分为信息性与控制性,两种性质的压力源产生的压力感受均存在显著性的差异;对不同代际的员工而言,两种性质的压力源所产生的压力感受存在显著性的差异.研究结论启发管理者应关注员工对压力源的个人评价,同时注意不同年龄的员工所感受到的压力特点,在压力源无法改变的前提下,为员工创造信息性的环境,可以显著缓解员工的压力感受.     

Professionals in Medical Settings:

Selected literature is reviewed to illustrate the causes and effects of stressors in various medical professional groups. In general, the common stressors faced by medical professionals appear to result from the interdependent nature of the jobs in the hospital or medical settings, the individual's sociocultural background and personality. Individual characteristics moderated the relationship between stressors and stress symptoms. Job and role-related stressors were consistently related to distress, or negative consequences, while positive work relationships and social support appeared to decrease distress. Directions for future research areas are discussed.     

Job stress in two different care-giving contexts: A study of professional and semi-professional health personnel in Norway

The study examined the relationship between priorities in job tasks and stress-related experiences among health workers in long-term care (n = 322). Employees' priorities were measured in terms of role orientation, represented by two different 'profiles': expressive and instrumental role orientation. Job stress assessed included potential workload and emotional involvement. Stress-related experiences assessed were psychosomatic and interpersonal consequences. Sub-group analyses were used to test the nature of the relationship between stressors and the criterion variables in the study. The sub-group analyses indicated that role orientation only partially moderated the relationship between job stressors and employees' stress-related experiences. It was in relation to emotional involvement that role orientation was a relatively strong moderator.     

Relations between stressors and group perceptions: Main and mediating effects

Most orgnizations these days utilize groups for the performance of at least some tasks. There is therefore a need to examine the relationthip between job stressors and group functioning. Until now it has been proposed that employees who perceive high levels of stress in their jobs will have negative perceptions of the groups in which they work, in the form of reduced altruism and collective efficacy. They may also have higher levels of psychological strain. This study examined relations between job-related stressors and group perceptions (collective efficacy 3rd the prevalence of altruistic behaviour) in a sample of 2403 mililitary personnel, comprising 31 companies in two US Anny combat brigades. We also examined whether group perceptions mediated the relationship between stressors and both job satisfaction and subjective well-being. Results indicated that stressors were negatively associated with measures of group perceptions, and both job satisfiction and well-being. Furthermore, mediated regression analyses suggested that relations between interpersonal conflict and both job satitfaction and well-being were partially mediated by both group perception measures. These finding suggest that work-related stressors may negatively impact on group functioning, which may lead to employee strains. Implications of these finding are discussed, and suggestions are made for future research.     

Abusive interaction and role state stressors: Relative impact on student residence assistant stress and work attitudes

Despite the recognition that poor working relationships can contribute to strain (Chen and Spector 1991, Cooper and Marshall 1978, Kahn and Byosiere lY92, Spector 1987, Spector et al. 1988) and increasing concern over violence and aggression in the workplace (Northwestern National Life Insurance Co. 1993), little research attention has been paid to hostile interpersonal interaction as a work-related stressor. While recent work has focused on interpersonal conflict and sexual harassment as stressors, emotionally abusive interactions have remained largely unaddressed by the organizational stress literature. These interactions are characterized by hostile verbal and non-verbal, non-physical behaviours directed by one or more persons towards another that negatively affect the target's sense of him/herself as a competent person and worker (Keashly et al. 1994, Leymann 1990). The current study examined whether emotional abuse contributed uniquely to understanding work-related stress in student residence assistants (RAs). Seventy-six RAs employed by a Canadian university responded to a questionnaire on the quality of their work experience. The stressors examined were role conflict, role overload, role ambiguity, and number, frequency, and impact of abusive events with dormitory residents. Outcome variables included job-related tension, job satisfaction, job commitment, and intention to leave. Emotional abuse contributed similar amounts of unique variance as the role state stressors to the variables of tension, job satisfaction and intention to leave suggesting emotional abuse is an important and uniquc workplace stressor. Implications of these findings for future research are discussed.     

Subjective health and its relationship with working time variables and job stressors: Sequence or general factor model?

Abstract

This study compares two theoretical models that make different assumptions about the structure of subjective health constructs and about the effects of job stressors and working time variables on health. The first model, the sequence model, is based on sequential models of the development of ill-health and posits that chronic fatigue and sleep problems mediate the effects of job stressors and working time variables on depression and somatic complaints. The second model, the general strain factor model, posits that specific health constructs (e.g. fatigue, depression, and somatic complaints) are reflections of a common general strain factor (i.e. detrimental job conditions increase the individual's sensitization to strain). In this way the study expands traditional models of stress-related effects on health. The analyses were carried out in a sample of 365 individuals in Germany. Although both models fitted the data, the general strain factor model was found to be superior. Furthermore, the effects of job stressors and working time on the health constructs fatigue and sleep quality were mediated by the general strain factor. Also, a negative relationship emerged between working time duration and general strain. It is suggested that the general strain model could be useful in future health psychology research.     

Identifying the causes of nurses' stress: A survey of New Zealand nurses

Abstract

A nationwide survey of 2500 general and obstetric nurses identified five potential sources of stress. These included work overload, difficulties relating to other staff, the difficulties involved in nursing the critically ill, concerns over the treatment of patients, and dealing with difficulty or helplessly ill patients. These findings support earlier work which suggested that a number of stressful situations are commonly encountered by all nurses. In terms of intervention strategies these results point to a number of important issues which are discussed in this paper. They include the difficulties and conflicts inherent in the nurses' role, the multidimensional nature of the different stressors, aspects of the work environment which give rise to different stressors and the relationship between stressors.     

Back to basics: Re-examination of Demand-Control Theory of occupational stress

The Demand-Control model of occupational stress posits an interaction between job demands and job control predicting psychological strain, but previous research has found such an interaction only rarely or inconsistently. Such research, however, has often failed to measure either demands or strain faithfully to the model's constructs, or has simply failed to test for a statistical interaction. The present study corrected these shortcomings by going back to basics. Using a sample of 115 employees in a manufacturing company, it operationalized the variables more consistently with their original conceptualizations. However, when the hypothesized Demand-Control interaction was then tested, it still failed. Outcomes other than psychological strain (e.g. job dissatisfaction) were related negatively rather than positively to demands. This highlights the difference between psychological strain and dissatisfaction and casts doubt on models positing dissatisfaction as an intervening variable between stressors and strains.     

Interactive effects of perceived control and job stressors on affective reactions and health outcomes for clerical workers

Karasek's (1979) hypothesis that perceived control interacts with various job stressors in affecting employee satisfaction and health was tested. It was proposed that high levels of perceived stress would only be associated with poor health and negative affect in the presence of low control. One hundred and thirty-six clerical workers at a major US university completed questionnaries containing the measures of interest. The results of regression analyses failed to support the interaction hypothesis. However, measures related to both control and job stressors were found to correlate with satisfaction and health outcomes, as has been found in prior research. Limitations of the self-report and correlational methodology are discussed.     

Moderating effects of social support in shiftworking and non-shiftworking nurses

The effects of social support on the job stress (role ambiguity)-strain (job dissatisfaction, intent-to-turnover, health problems) relationship were investigated in shiftworking (second and third shifts) and non-shiftworking (first shift) groups of nurses (N = 191). Previous research indicates that shiftworkers frequently report problems of social integration as a negative aspect of their jobs. Additionally, shiftworkers demonstrate a number of stress-related illnesses. Social support has been hypothesized to show its strongest stress-buffering (i.e. moderating) effects in high stress environments. In other words, persons with higher levels of social support are less likely to be negatively affected by high stress environments. It was hypothesized that individuals working on shiftwork would demonstrate stronger moderating effects of social support on the job stress-strain relationship than non-shiftworkers because of the stressful nature of shiftwork and the importance of social integration difficulties to shiftworkers. The dependent measures used in the analyses were global job satisfaction, intent-to-quit, and perceived health problems. Main and moderating effects of social support were found for several of the analyses. For shiftworkers, this buffering effect was significantly greater for supervisor social support on global job satisfaction and intent-to-quit. Implications of the findings are discussed.     

Tampering with Nature: A Systematic Review

Tampering with nature has been shown to be a strong, and sometimes even the strongest, predictor of the risk perception and acceptance of various technologies and behaviors, including environmental technologies, such as geoengineering. It is therefore helpful to understand what tampering with nature is as a construct, to which factors it relates, and when a technology or behavior is perceived as such. By means of a systematic review, we show that very little systematic research has been conducted on tampering with nature. Because tampering with nature has not yet been clearly defined, no systematic operationalization of tampering with nature has been used in the current literature. We show that tampering with nature is often used interchangeably with other constructs, such as naturalness. Based on the literature, we suggest that tampering with nature is related to and possibly influenced by three other constructs, which are naturalness, morality, and controllability. We discuss the influence of tampering with nature on the acceptance and risk perception of various technologies and behaviors and make suggestions for future research needs in order to better understand this construct.     

Back to basics: Re-examination of Demand-Control Theory of occupational stress

The Demand-Control model of occupational stress posits an interaction between job demands and job control predicting psychological strain, but previous research has found such an interaction only rarely or inconsistently. Such research, however, has often failed to measure either demands or strain faithfully to the model's constructs, or has simply failed to test for a statistical interaction. The present study corrected these shortcomings by going back to basics. Using a sample of 115 employees in a manufacturing company, it operationalized the variables more consistently with their original conceptualizations. However, when the hypothesized Demand-Control interaction was then tested, it still failed. Outcomes other than psychological strain (e.g. job dissatisfaction) were related negatively rather than positively to demands. This highlights the difference between psychological strain and dissatisfaction and casts doubt on models positing dissatisfaction as an intervening variable between stressors and strains.     

Role stress among Canadian white-collar workers

The incidence of various stressors at work and outside work was examined in a group of public service workers with a large Canadian federal government department. Workers were either in clerical, technical and supervisory ('officers'), or management positions. Measures of work stress included role stressors (load, insufficiency, conflict ambiguity and responsibility), as well as stress due to the physical environment. Both life events and daily hassles were included as measures of non-work stress. The consequences of stress were considered in terms of vocational, psychological, interpersonal, and physical strain, as well as in terms of job satisfaction and organizational commitment. Potential moderators of stress included social support and self-esteem. Among work stressors conflict, ambiguity and insufficiency were the more closely associated with vocational outcomes. MANCOVA followed by discriminant function analysis showed that clerical workers were distinguished by higher levels of insufficiency, officers by higher levels of conflict and the lowest levels of job satisfaction and organizational commitment, and managers by higher levels of perceived responsibility for others. The results are discussed in terms of social role theory.     

Are work stress relationships universal? A nine-region examination of role stressors,general self-efficacy,and burnout

Cross-national studies of job stress have not kept pace with other streams of research in the international milieu. To begin to address this lack of development, we examined the relationships among role stressors, general self-efficacy (GSE), and burnout across nine regions (i.e., U.S., Germany, France, Brazil, Israel, Japan, China, Hong Kong, and Fiji). Findings indicated GSE had a universally negative association with burnout across all regions. Further, self-efficacy mediated the relationship between role conflict and/or role ambiguity and burnout across eight of the nine cultures. Conclusions center around how low self-efficacy may help to explain why occupational role stressors have a positive association with burnout cross-nationally. Implications and directions for future research are discussed.     

Cognitive therapy and behavioural coping in the management of work-related stress: An intervention study

Transactional models of stress emphasize the importance of cognitive appraisal of potential stressors in the determination of the stress response. This appraisal can be modified by the use of techniques normally associated with cognitive therapy. The contribution of a specifically cognitive component when intervening in work-related stress has not been well evaluated to date. This research seeks to determine the effectiveness of stress management training in the treatment of the work-related effects of stress by comparing the role of modifying dysfunctional cognitions with the teaching of appropriate behavioural coping strategies. Participants were allocated to one of two intervention conditions or to a waiting list control group. Those in the intervention conditions received group stress management either with the focus on delivering cognitive therapy techniques or with the focus on behavioural coping skills. Measures of general health were taken at the beginning and end of intervention and at 3-month follow-up. Participants in the cognitive therapy groups who were reporting symptoms of general ill-health at the start of the intervention showed a significant improvement at follow-up. Cognitive therapy appears to have been an effective intervention in work-related stress. Those in the behavioural group showed a smaller but still clinically effective improvement. Results are discussed in terms of methodological issues and implications for future research. It is suggested that changes in cognitive appraisal may need to be developed.     

Lack of reciprocity among Dutch teachers: Validation of reciprocity indices and their relation to stress and well-being

This research presents the results of two related studies on the convergent and construct validity of three measures of reciprocity in exchange relationships at work. In Study 1, 71 Dutch teachers were interviewed about their specific investments and outcomes in the exchange relationships with their students, colleagues and school. ANOVA revealed that they reported significantly more investments than outcomes, and that the number of reported investments and outcomes mentioned varied as a function of the type of exchange relationship. Building on these results, multi-item scales were created to assess reciprocity at a detailed level for each of the three exchange relationships. Study 2 validated these specific reciprocity measures by relating them to two global assessments of reciprocity (convergent validity) as well as to measures of job stress and well-being (construct validity). LISREL-analysis of data obtained from a further sample of 224 teachers revealed that for each type of exchange relationship there were significant, consistent and meaningful relationships among the three reciprocity measures. Further, hierarchical regression analysis showed that the reciprocity measures were differentially related to job stressors and measures of well-being. Implications are discussed.     

Lack of reciprocity among Dutch teachers: Validation of reciprocity indices and their relation to stress and well-being

This research presents the results of two related studies on the convergent and construct validity of three measures of reciprocity in exchange relationships at work. In Study 1, 71 Dutch teachers were interviewed about their specific investments and outcomes in the exchange relationships with their students, colleagues and school. ANOVA revealed that they reported significantly more investments than outcomes, and that the number of reported investments and outcomes mentioned varied as a function of the type of exchange relationship. Building on these results, multi-item scales were created to assess reciprocity at a detailed level for each of the three exchange relationships. Study 2 validated these specific reciprocity measures by relating them to two global assessments of reciprocity (convergent validity) as well as to measures of job stress and well-being (construct validity). LISREL-analysis of data obtained from a further sample of 224 teachers revealed that for each type of exchange relationship there were significant, consistent and meaningful relationships among the three reciprocity measures. Further, hierarchical regression analysis showed that the reciprocity measures were differentially related to job stressors and measures of well-being. Implications are discussed.     

Are Individual Differences Germane to the Acceptance of New Information Technologies?

Persuading users to adopt new information technologies persists as an important problem confronting those responsible for implementing new information systems. In order to better understand and manage the process of new technology adoption, several theoretical models have been proposed, of which the technology acceptance model (TAM) has gained considerable support. Beliefs and attitudes represent significant constructs in TAM. A parallel research stream suggests that individual difference factors are important in information technology acceptance but does not explicate the process by which acceptance is influenced. The objective of this paper is to clarify this process by proposing a theoretical model wherein the relationship between individual differences and IT acceptance is hypothesized to be mediated by the constructs of the technology acceptance model. In essence then, these factors are viewed as influencing an individual's beliefs about an information technology innovation; this relationship is further supported by drawing upon extensive research in learning. The theoretical model was tested in an empirical study of 230 users of an information technology innovation. Results confirm the basic structure of the model, including the mediating role of beliefs. Results also identify several individual difference variables that have significant effects on TAM's beliefs. Theoretical contributions and practical implications that follow are discussed.     

Leadership and stress: A meta-analytic review

Stress has been implicated as an important determinant of leadership functioning. Conversely, the behavior of leaders has long been argued to be a major factor in determining the stress levels of followers. Yet despite the widespread acknowledgement that stress and leadership are linked, there has been no systematic attempt to organize and summarize these literatures. In the present, we meta-analytically review the relationship between three leadership constructs (transformational leadership, leader-member exchange, and abusive supervision) and stress and burnout. Our analyses confirm that leader stress influences leader behavior and that leadership behaviors and leader-follower relationships are significant determinants of stress and burnout in subordinates. We build on these results to suggest new avenues for research in this domain as well as discussing how these results can inform practice with regards to leader development.     

Psychosocial factors and safety behaviour as predictors of accidental work injuries in farming

Farming is one of the most hazardous occupations in terms of the incidence and seriousness of accidental injuries. Research with other occupational groups has drawn attention to the role of psychosocial factors and stress. Such research needs to be extended to agriculture. Since stress may be a problem faced by farmers, there is a particular need to investigate the associations between farm accidents and work stressors and stress reactions. Using multivariate logistic regression analyses, this study aimed to uncover the best psychosocial predictors of injury, while controlling for exposure-related confounders. From a randomly selected sample of 794 farms, 10% of all farms in Ringkoebing County, Denmark, 393 farmers completed completed weekly accident registration over 12 months. The study sample consisted of 310 farmers who also completed questionnaires on psychosocial factors. Results indicated that farm stressors (including perceived economic problems), stress symptoms, and safety behaviour were predictors of occupational farm accidents. Higher levels of stressors and stress symptoms and poor safety behaviour were all associated with an elevated risk of injury. In the case of stress symptoms, the relation with accidents occurred via an interaction with safety behaviour. The combination of high levels of stress symptoms and poor safety behaviour was associated with a particularly high accident risk.