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