The correct answer is D. Mass assembly room.
The Hawthorne experiments were a series of studies conducted at the Hawthorne Works of the Western Electric Company between 1924 and 1932. The experiments were designed to investigate the relationship between working conditions and productivity.
The first experiment, the illumination experiment, was conducted to investigate the effect of different levels of illumination on productivity.
The researchers found that productivity increased when the level of illumination was increased, but it also increased when the level of illumination was decreased. This led the researchers to conclude that the level of illumination was not the only factor that affected productivity.The second experiment, the relay assembly test room experiment, was conducted to investigate the effect of rest periods, shorter working hours, and changes in temperature and humidity on productivity. The researchers found that productivity increased when the workers were given rest periods and shorter working hours, but it also increased when the conditions were returned to normal. This led the researchers to conclude that the social environment of the workplace was also a factor that affected productivity.
The third experiment, the bank wiring observation room experiment, was conducted to investigate the effect of social factors on productivity. The researchers found that the workers in the observation room developed a social norm of production, and that they would often slow down their work in order to maintain this norm. This led the researchers to conclude that social factors, such as group norms, could also affect productivity.
The Hawthorne experiments were a major turning point in the field of industrial psychology. They showed that the
social environment of the workplace could have a significant impact on productivity. The experiments also led to the development of the human relations movement, which emphasized the importance of employee satisfaction and morale in the workplace.The mass assembly room was not a part of the Hawthorne experiments. The mass assembly room was a type of work environment in which workers were assigned to a specific task and were responsible for repeating that task over and over again. The mass assembly room was a common type of work environment in the early 20th century, but it has since been replaced by more modern methods of production.