44 Minutes, 9 Sec A factory manager is concerned with employee turnover. In a ty

Question

44 Minutes, 9 Sec 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 D Question 1 1 pts 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 O Attrition ? History O Maturation ? Regression O Retesting ? Selection

Explanation / Answer

The correct answer is Option 4. It appears that the effect of statistical regression is acting as the threat to internal validity. When measurement of the dependent variable is not perfectly reliable, there is a tendency for extreme scores to regress or move toward the mean. In this case, the rate decreases from 85% to 69% and finally to 79%. The amount of statistical regression is inversely related to the reliability of the test.

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