CIEE CIEE Psychosocial & Organizational Ergonomics 2 — Questions and Answers
Question 1: What is 'effort-reward imbalance' (ERI) and how does it relate to occupational ergonomics?
- A biomechanical model measuring the ratio of muscle effort to external load
- A psychosocial stress model where high work effort combined with low rewards (pay, esteem, job security) increases health risk including MSDs (Correct answer)
- The difference between perceived and actual force exertion measured by EMG
- A production efficiency metric comparing worker output to equipment cost
Correct answer: A psychosocial stress model where high work effort combined with low rewards (pay, esteem, job security) increases health risk including MSDs
Siegrist's effort-reward imbalance model identifies that workers who exert high effort but receive insufficient rewards experience chronic stress that independently contributes to MSD development and reporting.
Question 2: In organizational ergonomics, what is 'job enrichment' and how does it differ from job enlargement?
- Job enrichment adds higher-complexity tasks and decision-making authority (vertical expansion), while job enlargement adds similar-level tasks (horizontal expansion) (Correct answer)
- Job enrichment increases pay while job enlargement increases task count
- Job enrichment applies only to white-collar roles and job enlargement to blue-collar roles
- They are synonymous terms used interchangeably in ergonomics literature
Correct answer: Job enrichment adds higher-complexity tasks and decision-making authority (vertical expansion), while job enlargement adds similar-level tasks (horizontal expansion)
Job enrichment vertically expands a job by adding autonomy, skill variety, and responsibility, while job enlargement horizontally adds more tasks at the same level, both strategies reducing ergonomic risk in different ways.
Question 3: Which evidence-based approach helps organizations identify psychosocial ergonomic risks before conducting a physical workstation assessment?
- Reviewing OSHA 300 logs for injury trends by department and task type
- Conducting employee symptom surveys and structured interviews about job demands, control, and support (Correct answer)
- Measuring cortisol levels in worker saliva samples
- Reviewing production output records for low-performing departments
Correct answer: Conducting employee symptom surveys and structured interviews about job demands, control, and support
Structured employee surveys and interviews using validated tools like the Job Content Questionnaire or Nordic Musculoskeletal Questionnaire capture psychosocial and physical risk data that guide the prioritization of ergonomic assessments.
Question 4: How does 'time pressure' as a psychosocial stressor affect ergonomic risk in a manufacturing setting?
- Time pressure improves ergonomic outcomes by increasing worker focus and reducing idle time
- Time pressure forces workers to skip protective behaviors like adjusting workstation height or using mechanical assists, increasing physical risk (Correct answer)
- Time pressure only affects cognitive performance, not postural behavior
- Time pressure is irrelevant when workers are paid hourly rather than by piece rate
Correct answer: Time pressure forces workers to skip protective behaviors like adjusting workstation height or using mechanical assists, increasing physical risk
When workers feel intense time pressure—whether from production quotas, piece-rate pay, or supervisor pressure—they are more likely to skip workstation adjustments, use shortcuts, and sustain awkward postures to maintain pace.
Question 5: What role does 'worker participation' play in a successful ergonomics program according to OSHA guidelines and ergonomic research?
- Worker participation is optional and primarily serves as a legal liability protection strategy
- Worker participation is a core element because workers have direct knowledge of task demands, variation, and practical barriers to ergonomic solutions (Correct answer)
- Workers should only be consulted after management has finalized the ergonomic solution
- Worker participation increases program costs without measurable benefit to MSD outcomes
Correct answer: Worker participation is a core element because workers have direct knowledge of task demands, variation, and practical barriers to ergonomic solutions
OSHA ergonomic guidelines and research consistently identify meaningful worker participation as essential because workers possess first-hand knowledge of actual task variability, informal workarounds, and practical constraints that external assessors often miss.
Question 6: What is the primary ergonomic concern with 'electronic performance monitoring' (EPM) in workplaces like call centers or warehousing?
- EPM systems create excessive electromagnetic field exposure for workers
- EPM can increase perceived job demands and reduce autonomy, elevating psychosocial stress that compounds physical MSD risk from the work itself (Correct answer)
- EPM is only a concern in workplaces with fewer than 50 employees
- EPM systems replace supervisor roles, removing a source of social support
Correct answer: EPM can increase perceived job demands and reduce autonomy, elevating psychosocial stress that compounds physical MSD risk from the work itself
Electronic monitoring of keystrokes, call metrics, or warehouse pick rates increases perceived surveillance and pressure, which are psychosocial stressors shown to amplify musculoskeletal symptoms independent of the physical demands of the task.
CIEE CIEE Psychosocial & Organizational Ergonomics 2
What is 'effort-reward imbalance' (ERI) and how does it relate to occupational ergonomics?