Can a workplace leadership intervention reduce job insecurity and improve health? Results from a field study

Taking stock and moving forward: A textual statistics approach to synthesizing four decades of job insecurity research

We collected the abstracts of manuscripts examining job insecurity published between 1984 and 2019 and carried out a textual analysis to investigate the defining clusters, their development over time, and whether there was evidence of siloed knowledge. Results suggested that job insecurity research seems to be fragmented into disciplinary foci (organizational psychology, public health, economics, and sociology). Further analyses on the organizational psychology corpus, revealed 25 topics with distinct temporal trajectories: some were increasing (analytical advances and differentiation between cognitive and affective job insecurity) while other were decreasing (scale development). The remaining abstracts revealed 15 topics with more stable trajectories. Based on these results, we identified five areas for future organizational research on job insecurity: the changing labor market, the need to better understand the experiences of marginalized workers and non-work outcomes of job insecurity, the added-value of qualitative research, and the need to critically evaluate our assumptions as researchers. Plain Language Summary Since the paper by Greenhalgh and Rosenblatt, research on job insecurity has burgeoned. Taking an interdisciplinary perspective, we collected the abstracts of all peer-reviewed manuscripts examining job insecurity published between 1984 and 2019 and carried out a textual analysis using the Latent Dirichlet Allocation and the Reinert method to investigate (a) the defining clusters of job insecurity research, (b) the development of such clusters over time, and (c) whether there was any evidence of siloed knowledge. Results suggested that indeed job insecurity research seems to be fragmented into four main disciplinary foci (organizational psychology, public health, economics, and sociology) with relatively little cross-fertilization. We conducted further analyses of the abstracts stemming from organizational research on job insecurity, revealing 25 topics with distinct temporal trajectories (e.g., “hot” topics including the increasing use of advanced analytic techniques and differentiation between cognitive and affective job insecurity) and “cold” topics including the development of job insecurity measures). The remaining abstracts revealed 15 topics with more stable research interests over time (e.g., a continued reliance on appraisal theories). Based on these results, we identified five areas for future organizational research on job insecurity based on: the changing labor market, the need to better understand the experiences of marginalized workers and non-work outcomes of job insecurity, the added-value of qualitative research, and finally the need to critically evaluate our assumptions as researchers.

Effectiveness of health-oriented leadership interventions for improving health and wellbeing of employees: a systematic review

Aim

To identify and summarize the evidence for the effect of health-oriented leadership interventions on health and well-being outcomes at the employee level following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement (Moher et al. 2009).

Subject and Methods

A systematic search of relevant studies was conducted in multiple databases. Randomized controlled trials (RCTs), cluster-randomized controlled trials (cRCTs) and controlled before–after studies (CBAs) were included based on the following criteria: interventions that addressed supervisors, to raise awareness for the importance of health issues, teach mindfulness practices for conscious awareness, reduce stress and promote resources at the level of individual behavior, and evaluated the effect on at least one outcome of psychomental stress, absenteeism and well-being on the employee level.

Results

Of 6126 publications retrieved, ten studies were identified for analysis. Significant effects of leadership training were reported on exhaustion tendency, self-reported sickness absence, work-related sickness absence and job satisfaction in studies comparing health-oriented training programs to no intervention. Studies comparing health-oriented leadership training to other training did not report significant effects. Risk of bias was judged to be high in seven studies and unclear in three studies.

Conclusion

Evidence for the effectiveness of health-oriented leadership interventions on employees’ stress, absenteeism or well-being is judged to be low, clearly indicating the need for more and higher-quality research.

Human resource management training of supervisors for improving health and well-being of employees

BACKGROUND

Many workers suffer from work-related stress and are at increased risk of work-related cardiovascular, musculoskeletal, or mental disorders. In the European Union the prevalence of work-related stress was estimated at about 22%. There is consensus that stress, absenteeism, and well-being of employees can be influenced by leadership behaviour. Existing reviews predominantly included cross-sectional and non-experimental studies, which have limited informative value in deducing causal relationships between leadership interventions and health outcomes.

OBJECTIVES

To assess the effect of four types of human resource management (HRM) training for supervisors on employees' psychomental stress, absenteeism, and well-being. We included training aimed at improving supervisor-employee interaction, either off-the-job or on-the-job training, and training aimed at improving supervisors' capability of designing the work environment, either off-the-job or on-the-job training.

SEARCH METHODS

In May 2019 we searched CENTRAL, MEDLINE, four other databases, and most relevant trials registers (ICTRP, TroPHI, ClinicalTrials.gov). We did not impose any language restrictions on the searches.

SELECTION CRITERIA

We included randomised controlled trials (RCT), cluster-randomised controlled trials (cRCT), and controlled before-after studies (CBA) with at least two intervention and control sites, which examined the effects of supervisor training on psychomental stress, absenteeism, and well-being of employees within natural settings of organisations by means of validated measures.

DATA COLLECTION AND ANALYSIS

At least two authors independently screened abstracts and full texts, extracted data and assessed the risk of bias of included studies. We analysed study data from intervention and control groups with respect to different comparisons, outcomes, follow-up time, study designs, and intervention types. We pooled study results by use of standardised mean differences (SMD) with 95% confidence intervals when possible. We assessed the quality of evidence for each outcome using the GRADE approach.

MAIN RESULTS

We included 25 studies of which 4 are awaiting assessment. The 21 studies that could be analysed were 1 RCT, 14 cRCTs and 6 CBAs with a total of at least 3479 employees in intervention and control groups. We judged 12 studies to have an unclear risk of bias and the remaining nine studies to have a high risk of bias. Sixteen studies focused on improving supervisor-employee interaction, whereas five studies aimed at improving the design of working environments by means of supervisor training.Training versus no interventionWe found very low-quality evidence that supervisor training does not reduce employees' stress levels (6 studies) or absenteeism (1 study) when compared to no intervention, regardless of intervention type or follow-up. We found inconsistent, very low-quality evidence that supervisor training aimed at employee interaction may (2 studies) or may not (7 studies) improve employees' well-being when compared to no intervention. Effects from two studies were not estimable due to missing data.Training versus placeboWe found moderate-quality evidence (2 studies) that supervisor training off the job aimed at employee interaction does not reduce employees' stress levels more than a placebo training at mid-term follow-up. We found low-quality evidence in one study that supervisor training on the job aimed at employee interaction does not reduce employees' absenteeism more than placebo training at long-term follow-up. Effects from one study were not estimable due to insufficient data.Training versus other trainingOne study compared the effects of supervisor training off the job aimed at employee interaction on employees' stress levels to training off the job aimed at working conditions at long-term follow-up but due to insufficient data, effects were not estimable.

AUTHORS' CONCLUSIONS

Based on a small and heterogeneous sample of controlled intervention studies and in contrast to prevailing consensus that supervisor behaviour influences employees' health and well-being, we found inconsistent evidence that supervisor training may or may not improve employees' well-being when compared to no intervention. For all other types of interventions and outcomes, there was no evidence of a considerable effect. However, due to the very low- to moderate-quality of the evidence base, clear conclusions are currently unwarranted. Well-designed studies are needed to clarify effects of supervisor training on employees' stress, absenteeism, and well-being.