5.03 Ergonomics Quiz
Question: primary approaches to reduce manual material handling
Answer: ergonomic job design, worker selection, and worker training
-alone are not effective controls for lower back pain
Question: workforce trends
Answer: -demographic changes (aging workforce, increasing number of women, increasing number of dual-career couples)
-changes in the structure of work (increasing tech, rise of technical, professional, “white collar” jobs)
-diversity of work tasks
Question: worker selection philosophy 1
Answer:
Question: worker selection philosophy 2
Answer:
Question: personnel selection approach
Answer: -identify job demands (job analysis for knowledge, skills, abilities), performance criteria
-measure workers’ capabilities/attributes
for cognitive ability, physical abilities like strength, endurance, and fitness, and personality
Question: Why evaluate worker capacity?
Answer: -find high risk workers
-improve performance
-assess return to work status
-affirmative action for women, older workers, and physically impaired
-cheaper than changing job?
Question: sensitivity=
Answer: TP/ (TP+FN)*100
Question: specificty
Answer: TN/ (FP+TN)*100
Question: positive predictive value=
Answer: TP/ (TP+FP)*100
Question: sensitivty
Answer: few screening or selection procedures have had formal evaluation of accuracy, sensitivity, etc.
sensitivity:
-measure of the test’s ability to identify workers who will develop injury or disease in the future
-sensitivity of 95%: 95/100 with risk of risk factors will have positive test