The Hawthorne experiments: conclusions and relevance today

The Hawthorne experiments

The Hawthorne experiments were carried out in the 1920s and early 1930s at the Hawthorne Works of the Western Electric Company, near Chicago (the NCERT text calls the company GEC), with Elton Mayo as their best-known figure. They founded the human relations approach, which treats workers as social beings whose effort depends on far more than pay and rules. They had four main phases:

• illumination experiments, in which output rose whether lighting was increased or reduced;
• the relay assembly test room, where a small group of women raised output steadily as they were consulted and given attention, even when earlier conditions were restored;
• the mass interviewing programme, covering thousands of workers, which revealed the importance of feelings and of being listened to;
• the bank wiring observation room, where a group of men held output to their own informal standard despite an incentive scheme.

Main conclusions

1. Social factors affect productivity. Attention, recognition and group belonging influence output more than physical conditions alone.
2. The worker is a social being. People are motivated by social and psychological needs, not only by money.
3. Informal groups matter. Groups within the formal organisation set norms of behaviour and output and exert strong pressure on members.
4. Supervision and communication. A friendly, supportive supervisory style and free communication raise morale and productivity.
5. Participation. Workers who are consulted feel involved and respond positively.
6. The organisation is a social system as well as a technical and economic one. Mayo's attack on the old view of workers led on to McGregor's Theory X and Theory Y.

Relevance today for management and organisational behaviour

1. Employee engagement. Modern practices, recognition programmes, regular one-to-one conversations, engagement surveys, rest on the finding that attention and recognition matter.
2. Teams and group dynamics. Team-based work, team-building and the study of group norms in organisational behaviour descend from the bank wiring findings.
3. Leadership style. Emphasis on supportive, participative and transformational leadership reflects the importance of supervision shown at Hawthorne.
4. Two-way communication. Open-door policies, grievance systems and feedback channels echo the interviewing programme.
5. Research methods. The Hawthorne effect: people changing their behaviour because they are observed: is still taken into account in research and in workplace pilots.
6. Remote and hybrid work. Isolation of remote workers has renewed interest in social belonging as a driver of performance.

Critical view

Critics have asked how far the results can be trusted: the test groups were small and not tightly controlled, so other changes going on at the time may explain part of the rise in output; conflict between workers and management was played down; and the approach was criticised as managing workers' feelings rather than improving their real conditions. A contented worker is not always a more productive one.

Conclusion

Despite their weaknesses, the Hawthorne experiments shifted management thinking from the purely economic view of the worker to a social one. Their central message, that people's feelings, groups and relationships at work shape performance, remains a foundation of organisational behaviour today.