Researchers scheduled one group of nurses at a hospital to w…
Researchers scheduled one group of nurses at a hospital to work 8-hour shifts for 6 days a week and another group of nurses to work 12-hour shifts for 4 days a week. At the end of the year, they compared results from a job satisfaction survey and found that the group who worked 12-hour shifts for 4 days a week had higher job satisfaction. The _______ variable in this study is the work schedule.
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