Sleep and Fatigue – Page 2 – Work, Stress, and Health

A Mokken Scale Analysis of the Occupational Depression Inventory

November 13, 2021November 12, 2021

Using a sample of 3,454 education staff members, we subjected the Occupational Depression Inventory (ODI), a recently developed instrument designed to assess depressive symptoms that individuals specifically attribute to their job, to a Mokken scale analysis (MSA), a method anchored in nonparametric Item Response Theory. MSA revealed that the ODI?s scalability was strong, no monotonicity violations were detected, invariant item ordering was satisfactory, and total score reliability was excellent. The ODI?s suicidal ideation item acted as a sentinel item–its endorsement signaled that the endorser likely had a host of other symptoms. Our findings indicate that because ODI items order individuals, and individuals order ODI items, accurately, occupational health specialists can confidently employ the ODI to examine work-attributed depressive symptoms.

Investigating Daily Rest and Leisure Frequency as Potential Moderators of the Relationship between Strenuous (High Demand) Activity Frequency and Perceived Whole Day Workload

November 13, 2021November 12, 2021

Typically, only workload from work is investigated (Bakker & Demerouti, 2007; Meijman & Mulder, 1998), but non-work sources such as caregiving can also be significant sources of workload. We aimed to advance understanding of factors affecting whole day workload by investigating if engagement in more strenuous, or high demand activities (Hernandez et al., 2020), in a day gives rise to greater whole day workload ratings, and if the frequency of rest and leisure activities moderate their relationship. Using mixed-effects modeling on 14 days of ecological momentary assessment data collected from 45 working adults with type 1 diabetes, we found that rest but not leisure was a significant moderator of the relationship between strenuous frequency and workload for workdays only, with higher rest decreasing the magnitude of workload associated with increases in strenuous frequency. Study results suggest that some workers may reduce their workload by substituting part of their leisure time with rest on workdays.