Hammer LB, Johnson RC, Crain TL, Bodner T, Kossek EE, Davis KD, Kelly EL, Buxton OM, Karuntzos GT, Chosewood CL, et al. Intervention Effects on Safety Compliance and Citizenship Behaviors: Evidence From the Work, Family, and Health Study. Journal of Applied Psychology. 2015.
Publisher's VersionAbstract
We tested the effects of a work–family intervention on employee reports of safety compliance and organizational citizenship behaviors in 30 health care facilities using a group-randomized trial. Based on conservation of resources theory and the work–home resources model, we hypothesized that implementing a work–family intervention aimed at increasing contextual resources via supervisor support for work and family, and employee control over work time, would lead to improved personal resources and increased employee performance on the job in the form of self-reported safety compliance and organizational citizenship behaviors. Multilevel analyses used survey data from 1,524 employees at baseline and at 6-month and 12-month postintervention follow-ups. Significant intervention effects were observed for safety compliance at the 6-month, and organizational citizenship behaviors at the 12-month, follow-ups. More specifically, results demonstrate that the intervention protected against declines in employee self-reported safety compliance and organizational citizenship behaviors compared with employees in the control facilities. The hypothesized mediators of perceptions of family-supportive supervisor behaviors, control over work time, and work–family conflict (work-to-family conflict, family-to-work conflict) were not significantly improved by the intervention. However, baseline perceptions of family-supportive supervisor behaviors, control over work time, and work–family climate were significant moderators of the intervention effect on the self-reported safety compliance and organizational citizenship behavior outcomes. (PsycINFO Database Record (c) 2015 APA, all rights reserved)
Olson R, Crain TL, Bodner T, King RB, Hammer LB, Klein LC, Erickson L, Moen P, Berkman LF, Buxton OM.
A workplace intervention improves sleep: results from the randomized controlled Work, Family & Health Study. Sleep Health. 2015;1 (1) :55-65.
Publisher's VersionAbstract
Study objectives: The Work, Family, and Health Network Study tested the hypothesis that a workplace intervention designed to increase family-supportive supervision and employee control over work time improves actigraphic measures of sleep quantity and quality.
Design: Cluster-randomized trial.
Setting: A global information technology firm.
Participants: US employees at an information technology firm.
Interventions: Randomly selected clusters of managers and employees participated in a 3-month, social, and organizational change process intended to reduce work-family conflict. The intervention included interactive sessions with facilitated discussions, role playing, and games. Managers completed training in family-supportive supervision.
Measurements and results: Primary outcomes of total sleep time (sleep duration) and wake after sleep onset (sleep quality) were collected from week-long actigraphy recordings at baseline and 12 months. Secondary outcomes included self-reported sleep insufficiency and insomnia symptoms. Twelve-month interviews were completed by 701 (93% retention), of whom 595 (85%) completed actigraphy. Restricting analyses to participants with ≥3 valid days of actigraphy yielded a sample of 473-474 for intervention effectiveness analyses. Actigraphy-measured sleep duration was 8 min/d greater among intervention employees relative to controls (P < .05). Sleep insufficiency was reduced among intervention employees (P = .002). Wake after sleep onset and insomnia symptoms were not different between groups. Path models indicated that increased control over work hours and subsequent reductions in work-family conflict mediated the improvement in sleep sufficiency.
Conclusions: The workplace intervention did not overtly address sleep, yet intervention employees slept 8 min/d more and reported greater sleep sufficiency. Interventions should address environmental and psychosocial causes of sleep deficiency, including workplace factors