Which of the following is a reason for why Factory A might be better than B that is not related to the new hourly schedule?
A). Maybe Factory A was more productive than Factory B even before the new hourly schedule started
B). Maybe any change in schedule boosts productivity (that is, even six days at 6.66 hours per day would boost productivity)
C). Maybe Factory A has other incentives to work hard (like a productivity bonus) that is unavailable to Factory B workers
D). All of these are possible extraneous variables (confounds)
Answer:D
Which of the following is a reason for why Factory A might be better than B that is not related to the new hourly schedule?
A). Maybe Factory A was more productive than Factory B even before the new hourly schedule started B). Maybe any change in schedule boosts productivity (that is, even six days at 6.66 hours per day would boost productivity) C). Maybe Factory A has other incentives to work hard (like a productivity bonus) that is unavailable to Factory B workers D). All of these are possible extraneous variables (confounds)