Each of the questions or incomplete statements below is followed by five suggested answers
or completions. Select the one that is best in each case.
Which statement best describes the Hawthorne effect?
a. Giving workers rest periods seems like it should decrease productivity, but it actually increases productivity.
b. Social relations among workers have a greater effect on productivity than physical environment.
c. Changes in light levels improve working conditions and therefore increase productivity.
d. The attention of researchers on subjects causes the effect the experimenter is looking for.