1. In the first set of studies, no correlation was found between changes in lighting conditions and individual work performance. In fact, performance nearly always went up with any change—
brighter or darker—in illumination.
2. In the second set of studies, the concept of the
Hawthorne effect emerged. The Hawthorne effect refers to the possibility that individuals singled out for a study may improve their performance simply because of the added attention they receive from the researchers, rather than because of anyspecific factors being tested in the study.
3. The third set of studies centered on group production norms and individual motivation.
4. Although simplistic and methodologically primitive, the Hawthorne studies established the impact
that social aspects of the job (and the informal group) have on productivity.
According to the 'Hawthorne Studies' productivity of employees:
► Increased by increasing light intensity
► Decreased by decreasing light intensity
► Increased by observing them
► None of the given options
plz tell is this correct ?
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