A factory psychologist is interested in studying the effect of humidity on the performance of tasks requiring manual dexterity. She chooses to perform an experiment in two rooms with the same temperature and different levels of humidity - low (60%) and high (80%). Sixty factory workers used to doing repetitive manual tasks are randomly assigned to work in each of the two rooms on two separate days. The workers are not told that there is a difference in the humidity levels in the two rooms. The study showed that the daily number of successfully completed tasks was on average significantly lower under the high humidity condition. 4. What type of blinding (if any) is used?Single, Double or none Brief explanation:
A factory psychologist is interested in studying the effect of humidity on the performance of tasks requiring manual dexterity. She chooses to perform an experiment in two rooms with the same temperature and different levels of humidity - low (60%) and high (80%). Sixty factory workers used to doing repetitive manual tasks are randomly assigned to work in each of the two rooms on two separate days. The workers are not told that there is a difference in the humidity levels in the two rooms. The study showed that the daily number of successfully completed tasks was on average significantly lower under the high humidity condition.
4. What type of blinding (if any) is used?
Single, Double or none
Brief explanation:
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