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Physical work conditions refer to the physical environment in which people do their jobs — things like the layout of the office, the lighting, and how the space is arranged. Research shows these conditions can have a powerful effect on how people behave and perform at work.
The Hawthorne effect is the finding that people change their behaviour simply because they know they are being watched or observed. It does not matter whether any real improvement has been made to their working conditions — the act of paying attention to workers is enough to improve their performance.
The name comes from a series of studies carried out at a factory called the Hawthorne Works in the USA. Researchers made various changes to working conditions (such as changing lighting levels or giving workers rest breaks) and measured how productivity changed. No matter what change was made — even when conditions got worse — productivity kept going up.
The key conclusion was that the workers were performing better because they felt noticed and valued — not because of the physical changes themselves.
The Hawthorne effect is an important concept because it shows that observation itself can change behaviour. This is also relevant in research — if people know they are being studied, they might not act naturally, which can make the results of a study less accurate.
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