In a recent city council meeting, the mayor claimed that implementing a four-day workweek for city employees will lead to increased productivity and improved employee morale. She pointed to several studies from other cities that have made similar changes, reporting benefits like reduced stress levels and higher job satisfaction. However, several council members expressed skepticism, arguing that the studies cited were not conducted in cities experiencing the same economic challenges as their own. They requested additional information before making a decision.
Based on the above discussion, which of the following would be necessary to evaluate the argument presented by the mayor?