A longitudinal study exploring the relationships between occupational stressors, non-work stressors, and work performance

There is a lack of intricate research into the relationships between work performance and other variables. This study examined the causal relationship between work, non-work stressors, and work performance. Using longitudinal multi-group data from three groups—university staff, trainee nurses, and part-time employees (overall N=244)—structural equation modelling was employed to explore one-way and reverse competing models. The results produced a good fitting model with one-way causal paths from work-related and non-work stressors (time 1) to job performance (time 2). Nested model comparison analysis provided further evidence to support this best fitting model, emphasizing the strong influence that non-work factors have within the workplace. This study has important implications for theory, methodology and statistical analysis, and practice in the field of work-related stressors and performance.     

It's all about me: The role of narcissism in exacerbating the relationship between stressors and counterproductive work behaviour

Although studies have found that personality variables moderate the relationship between stressors and counterproductive work behaviour, few have examined the role of narcissism and those that did have found inconsistent results. Using a sample of 515 United States employees, we found that narcissism moderated the relationships between interpersonal conflict at work and counterproductive work behaviours directed at others, and between organizational constraints and counterproductive work behaviours directed at the organization, making both relationships stronger for those high on narcissism. We also found that narcissism moderated the relationship between organizational constraints and counterproductive work behaviours directed at others. Further, we demonstrated that the grandiose exhibitionism facet of narcissism moderated these same stressor–counterproductive work behaviours relationships, whereas the facets of leadership/authority and entitlement/exploitiveness did not. Our study indicates that organizational scholars should examine narcissism as an important antecedent of work behaviour, and that research needs to consider potential differential prediction by each of its facets.     

The association between blood pressure and work stress: The importance of measuring isolated systolic hypertension

The objective was to study whether the relationships between elevated blood pressure and (a) work stress as related to the stressor overtime, and (b) unwinding after work, depend on what kind of criteria are used for the diagnosis of hypertension. A total of 126 healthy men (aged 20-66 years) employed in white-collar jobs were tested over 24 hours by means of ambulatory blood pressure monitoring on a regular working day. Four groups were defined according to their blood pressure status: normotensives (NT), hypertensives (HT), isolated systolic hypertensives (ISH), and isolated diastolic hypertensives (IDH). No differences of age, body mass index, overtime work, and disturbed unwinding were found between the normotensives and the hypertensives. ISH was found to be related to working overtime and to disturbed unwinding but not to biological risk factors; IDH, however, was related exclusively to the biological risk factor high body mass index. Thus, significant differences associated with overtime were found between ISH and both NT and IDH, with the isolated systolic hypertensives carrying out more than twice as much overtime as the normotensives or isolated diastolic hypertensives. More men with a disturbed ability to relax and vital exhaustion were found in the ISH group than in the NT group. It seems that, in addition to the usual diagnosis of hypertension, the classification of ISH and IDH adds new information about the relationship between blood pressure elevation and both work stress and disturbed unwinding.     

Measuring exposure to bullying at work: The validity and advantages of the latent class cluster approach

Abstract

This paper addresses the construct and predictive validity of two methods for classifying respondents as victims of workplace bullying. Although bullying is conceived as a complex phenomenon, the dominant method used in bullying surveys, the operational classification method, only distinguishes two groups: victims versus non-victims. Hence, the complex nature of workplace bullying may not be accounted for. Therefore a latent class cluster approach is suggested to model the data, which was obtained by using the Negative Acts Questionnaire (NAQ) administered to employees in Belgium (n=6,175). Latent class modelling is a method of analysis that does not appear to have been used in occupational health psychology before. In this study, six latent classes emerged: “not bullied,” “limited work criticism,” “limited negative encounters,” “sometimes bullied,” “work related bullied,” and “victims.” The results show that compared to the traditional operational classification method, the latent class cluster approach shows higher construct and higher predictive validity with respect to self-assessments and indicators of strain and well-being at work. The consequences of these results for theory, future research, and practice are discussed.     

Evidence for the need to distinguish between self-initiated and organizationally imposed overload in studies of work stress

This study attempts to enhance our understanding of the inconsistencies reported in the literature concerning the relationship between work overload and work outcomes. We tested the proposition that work overload should be divided into two constructs based on its source: self-initiated overload (SIO), and organization-imposed overload (OIO). Based on the work stress and job crafting literatures, we expected that SIO and OIO would tend to relate differentially to the work outcomes of job satisfaction, emotional exhaustion, work–family conflict, job performance, and helping organizational citizenship behaviours. A study was conducted using three samples, the first consisting of full-time employed students in three countries (N?=?116), the second consisting of the nursing staffs of six private hospitals in Switzerland, and the third consisting of 161 middle manager–supervisor dyads in Switzerland. Two different measures of SIO and OIO were used. SIO was found to have a more beneficial relationship with the work outcomes than OIO, general supporting our hypothesis. Theoretical and practical implications are discussed.     

The moderating role of personality characteristics on the relationship between job insecurity and strain

The experience of job insecurity has been linked to several different outcomes, such as negative attitudes towards work and the organization, turnover intention, as well as health complaints. However, since the strength of these effects have been found to vary across studies, it is vital to identify factors that could influence the relationships. The present study examines the moderating role of three personality characteristics (negative affectivity, positive affectivity, and external locus of control) on the relation between job insecurity and outcomes (mental health complaints, job dissatisfaction, and job-induced tension). Data from 400 nurses at a Swedish acute care hospital (response rate 71%; 91% women, aged 20-68 years) showed that both job insecurity and personality were related to strain. Also, the data indicated some buffering effect of personality. Despite the gender bias of the sample, the study provides additional support for the notion that job insecurity affects strain even after controlling for individual characteristics. The study also expands the literature on job insecurity by pointing out the influence of personality characteristics on the relationship between stressors and strain.     

Assessing the cumulative effects of stress: The association between job stress and allostatic load in a large sample of Chinese employees

Job stress can lead to various system dysfunctions, but until now no reliable biomarkers for its assessment have been identified. Allostatic load (AL) is an index that enables the cumulative effect on the body of chronic stress to be assessed, and is derived from a set of relevant biological measures. In this study, a 13-parameter index (building on the original 10-item index) was used to examine the relationship between job strain and AL. Participants were 1219 healthy Chinese employees. Job strain was measured using the Job Content Questionnaire, and AL was assessed by various possible stress responses, including blood pressure, cholesterol, indicators of glucose metabolism, and hormone and inflammation markers. AL in the high job strain group differed sharply from that in the low job strain group. The AL score was positively associated with age and educational level. Several individual parameters also differed between the two groups. Men scored significantly higher on AL and cardiovascular and metabolic health outcomes, whereas for women the associations appeared in the biological indicators. Analyses indicated that decision latitude (DL) and job demands were significantly related to AL. Job demands correlated significantly with the primary biological indicators and DL with the secondary health outcomes. In conclusion, this study provides evidence of the value of measuring allostatic load in assessing the chronic effects of job stress.     

Assessing the cumulative effects of stress: The association between job stress and allostatic load in a large sample of Chinese employees

Abstract

Job stress can lead to various system dysfunctions, but until now no reliable biomarkers for its assessment have been identified. Allostatic load (AL) is an index that enables the cumulative effect on the body of chronic stress to be assessed, and is derived from a set of relevant biological measures. In this study, a 13-parameter index (building on the original 10-item index) was used to examine the relationship between job strain and AL. Participants were 1219 healthy Chinese employees. Job strain was measured using the Job Content Questionnaire, and AL was assessed by various possible stress responses, including blood pressure, cholesterol, indicators of glucose metabolism, and hormone and inflammation markers. AL in the high job strain group differed sharply from that in the low job strain group. The AL score was positively associated with age and educational level. Several individual parameters also differed between the two groups. Men scored significantly higher on AL and cardiovascular and metabolic health outcomes, whereas for women the associations appeared in the biological indicators. Analyses indicated that decision latitude (DL) and job demands were significantly related to AL. Job demands correlated significantly with the primary biological indicators and DL with the secondary health outcomes. In conclusion, this study provides evidence of the value of measuring allostatic load in assessing the chronic effects of job stress.