In Roethlisberger's article, he mainly discussed three Hawthorne experiments, which include the "lighting" experiments, the "Relay Assembly Test Room" experiment, interviews on employee satisfaction and dissatisfaction and the “Bank”. Cabling Observation Room Experiment.” The aim of the experiments was to study the effect of environmental conditions, which include physical environmental conditions and psychological factors, on worker productivity. Such as lighting level, breaks, working hours, temperature and humidity.2 In the first test, the "lighting" experiments, the initial goal was to determine the relationship between lighting and worker efficiency. The investigator hypothesized that increasing the lighting level could help reduce worker fatigue and increase output. Two groups of workers, the “test group” and the “control group,” were selected for the study. The brightness of the light was increased and decreased to determine the effect on the productivity of the test group. The researchers were surprised to find that productivity increased even when lighting levels decreased. The conclusion from the first experiment was that employee performance was not necessarily related to lighting conditions and some other variables were not controlled during the test. The increase in productivity was due to the attention given to workers. In the second test, the “Relay Assembly Test Room” experiment, the researchers wanted to identify how other variables could affect productivity. A group of five girls were placed in a separate room where their working conditions could be carefully monitored and their performance could be measured. The result showed that the yield increased regardless of the medium of paper......menu machine. At first he said he felt good, because it wasn't difficult for him to do this work; he felt happy to earn money through this simple work. However, after two months, he said it was boring to deal with the same simple process at KFC and he thought it was wasting his time looking for a better job. Whatever he did such an amazing job, he said it was just a matter of pushing a button. No one cares about their performance, much less hoping the leader knows it. I think my friend's situation is one of the reasons why fast food restaurants can't keep their employees that long, and most of the employees come from young people, who don't really care about money issues, because their parents can sometimes help them. It’s true like what Roethlisberger says; people hope to be seen as special. They probably consider the benefit, but even money cannot be an absolute reason to maintain worker initiative..