A factory manager is concerned with employee turnover. In a typical year around 85% of the employees who were working at the beginning of the year are still working in the factory at the end of the year. Last year the rate was only 65%. The manager implements a more flexible schedule for the employees in an effort to make them happy. At the end of that year the retention rate for the factory workers is 79%, and the manager gets a pay raise for “solving the problem”.
Below is a list of threats to validity discussed in chapter 14. Identify which of them is most likely to provide an alternative explanation for the results,
[removed]A) Attrition [removed]B) History [removed]C) Maturation [removed]D) Regression [removed]E) Retesting [removed]F) Selection
Explain how this threat to validity could explain the results.
