easy · GMAT Verbal
A tech firm found that employees who participated in a voluntary yoga program reported 20% higher productivity levels than those who did not. The firm concluded that the yoga program increases employee productivity.
Which of the following, if true, most strengthens the conclusion?
- The yoga program was held during regular working hours, reducing the time employees spent at their desks.
- Employees who chose to join the yoga program were, on average, more health-conscious than those who declined to participate.
- Productivity was measured using standardized metrics that have been used by the firm for years.
- Employees who participated in the program were no more productive than their colleagues before the program began.
- The firm also recently upgraded all employee workstations with ergonomic chairs.
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